View source for Cast while Channelling Support

{{Item
|rarity_id                               = normal
|name                                    = Cast while Channelling Support
|class_id                                = Support Skill Gem
|size_x                                  = 1
|size_y                                  = 1
|drop_level                              = 38
|tags                                    = support_gem, gem, default
|metadata_id                             = Metadata/Items/Gems/SupportGemCastWhileChannelling
|help_text                               = This is a Support Gem. It does not grant a bonus to your character, but to skills in sockets connected to it. Place into an item socket connected to a socket containing the Skill Gem you wish to augment. Right click to remove from a socket.
|awakened_variant_id                     = Metadata/Items/Gems/SupportGemCastWhileChannellingPlus
|dexterity_percent                       = 40
|intelligence_percent                    = 60
|gem_tags                                = Support, Channelling, Spell, Trigger
|secondary_skill_id                      = SupportCastWhileChannellingTriggered
|skill_id                                = SupportCastWhileChannelling
|support_gem_letter                      = W
|required_level                          = 38
|quality_type1_weight                    = 1
|quality_type1_breakpoints               = 2.0
|static_cost_multiplier                  = 120
|static_damage_effectiveness             = 100
|static_damage_multiplier                = 100
|static_attack_speed_multiplier          = 100
|level1                                  = True
|level1_level_requirement                = 38
|level2                                  = True
|level2_level_requirement                = 40
|level3                                  = True
|level3_level_requirement                = 42
|level4                                  = True
|level4_level_requirement                = 44
|level5                                  = True
|level5_level_requirement                = 46
|level6                                  = True
|level6_level_requirement                = 48
|level7                                  = True
|level7_level_requirement                = 50
|level8                                  = True
|level8_level_requirement                = 52
|level9                                  = True
|level9_level_requirement                = 54
|level10                                 = True
|level10_level_requirement               = 56
|level11                                 = True
|level11_level_requirement               = 58
|level12                                 = True
|level12_level_requirement               = 60
|level13                                 = True
|level13_level_requirement               = 62
|level14                                 = True
|level14_level_requirement               = 64
|level15                                 = True
|level15_level_requirement               = 65
|level16                                 = True
|level16_level_requirement               = 66
|level17                                 = True
|level17_level_requirement               = 67
|level18                                 = True
|level18_level_requirement               = 68
|level19                                 = True
|level19_level_requirement               = 69
|level20                                 = True
|level20_level_requirement               = 70
|level21                                 = True
|level21_level_requirement               = 72
|level22                                 = True
|level22_level_requirement               = 74
|level23                                 = True
|level23_level_requirement               = 76
|level24                                 = True
|level24_level_requirement               = 78
|level25                                 = True
|level25_level_requirement               = 80
|level26                                 = True
|level26_level_requirement               = 82
|level27                                 = True
|level27_level_requirement               = 84
|level28                                 = True
|level28_level_requirement               = 86
|level29                                 = True
|level29_level_requirement               = 88
|level30                                 = True
|level30_level_requirement               = 90
|level31                                 = True
|level31_level_requirement               = 91
|level32                                 = True
|level32_level_requirement               = 92
|level33                                 = True
|level33_level_requirement               = 93
|level34                                 = True
|level34_level_requirement               = 94
|level35                                 = True
|level35_level_requirement               = 95
|level36                                 = True
|level36_level_requirement               = 96
|level37                                 = True
|level37_level_requirement               = 97
|level38                                 = True
|level38_level_requirement               = 98
|level39                                 = True
|level39_level_requirement               = 99
|level40                                 = True
|level40_level_requirement               = 100
|quality_type1_stat1_id                  = channelled_skill_damage_+%
|quality_type1_stat1_value               = 500
|quality_type1_stat2_id                  = triggered_skill_damage_+%
|quality_type1_stat2_value               = 500
|quality_type1_stat_text                 = Supported Channelling Skills deal (0.5-10)% increased Damage<br>Supported Triggered Spells deal (0.5-10)% increased Damage
|stat_text                               = Trigger a Supported Spell every (0.45-0.35) seconds while Channelling Supported Skills<br>Supported Triggered Spells deal 30% less Damage
|static_stat1_id                         = cast_spell_while_linked_skill_channelling
|static_stat1_value                      = 1
|static_stat2_id                         = spell_uncastable_if_triggerable
|static_stat2_value                      = 1
|static_stat3_id                         = support_cast_while_channelling_triggered_skill_damage_+%_final
|static_stat3_value                      = -30
|level1_stat_text                        = Trigger a Supported Spell every 0.45 seconds while Channelling Supported Skills
|level1_stat1_id                         = cast_while_channelling_time_ms
|level1_stat1_value                      = 450
|level2_stat_text                        = Trigger a Supported Spell every 0.44 seconds while Channelling Supported Skills
|level2_stat1_id                         = cast_while_channelling_time_ms
|level2_stat1_value                      = 440
|level3_stat_text                        = Trigger a Supported Spell every 0.44 seconds while Channelling Supported Skills
|level3_stat1_id                         = cast_while_channelling_time_ms
|level3_stat1_value                      = 440
|level4_stat_text                        = Trigger a Supported Spell every 0.43 seconds while Channelling Supported Skills
|level4_stat1_id                         = cast_while_channelling_time_ms
|level4_stat1_value                      = 430
|level5_stat_text                        = Trigger a Supported Spell every 0.43 seconds while Channelling Supported Skills
|level5_stat1_id                         = cast_while_channelling_time_ms
|level5_stat1_value                      = 430
|level6_stat_text                        = Trigger a Supported Spell every 0.42 seconds while Channelling Supported Skills
|level6_stat1_id                         = cast_while_channelling_time_ms
|level6_stat1_value                      = 420
|level7_stat_text                        = Trigger a Supported Spell every 0.42 seconds while Channelling Supported Skills
|level7_stat1_id                         = cast_while_channelling_time_ms
|level7_stat1_value                      = 420
|level8_stat_text                        = Trigger a Supported Spell every 0.41 seconds while Channelling Supported Skills
|level8_stat1_id                         = cast_while_channelling_time_ms
|level8_stat1_value                      = 410
|level9_stat_text                        = Trigger a Supported Spell every 0.41 seconds while Channelling Supported Skills
|level9_stat1_id                         = cast_while_channelling_time_ms
|level9_stat1_value                      = 410
|level10_stat_text                       = Trigger a Supported Spell every 0.40 seconds while Channelling Supported Skills
|level10_stat1_id                        = cast_while_channelling_time_ms
|level10_stat1_value                     = 400
|level11_stat_text                       = Trigger a Supported Spell every 0.40 seconds while Channelling Supported Skills
|level11_stat1_id                        = cast_while_channelling_time_ms
|level11_stat1_value                     = 400
|level12_stat_text                       = Trigger a Supported Spell every 0.39 seconds while Channelling Supported Skills
|level12_stat1_id                        = cast_while_channelling_time_ms
|level12_stat1_value                     = 390
|level13_stat_text                       = Trigger a Supported Spell every 0.39 seconds while Channelling Supported Skills
|level13_stat1_id                        = cast_while_channelling_time_ms
|level13_stat1_value                     = 390
|level14_stat_text                       = Trigger a Supported Spell every 0.38 seconds while Channelling Supported Skills
|level14_stat1_id                        = cast_while_channelling_time_ms
|level14_stat1_value                     = 380
|level15_stat_text                       = Trigger a Supported Spell every 0.38 seconds while Channelling Supported Skills
|level15_stat1_id                        = cast_while_channelling_time_ms
|level15_stat1_value                     = 380
|level16_stat_text                       = Trigger a Supported Spell every 0.37 seconds while Channelling Supported Skills
|level16_stat1_id                        = cast_while_channelling_time_ms
|level16_stat1_value                     = 370
|level17_stat_text                       = Trigger a Supported Spell every 0.37 seconds while Channelling Supported Skills
|level17_stat1_id                        = cast_while_channelling_time_ms
|level17_stat1_value                     = 370
|level18_stat_text                       = Trigger a Supported Spell every 0.36 seconds while Channelling Supported Skills
|level18_stat1_id                        = cast_while_channelling_time_ms
|level18_stat1_value                     = 360
|level19_stat_text                       = Trigger a Supported Spell every 0.36 seconds while Channelling Supported Skills
|level19_stat1_id                        = cast_while_channelling_time_ms
|level19_stat1_value                     = 360
|level20_stat_text                       = Trigger a Supported Spell every 0.35 seconds while Channelling Supported Skills
|level20_stat1_id                        = cast_while_channelling_time_ms
|level20_stat1_value                     = 350
|level21_stat_text                       = Trigger a Supported Spell every 0.35 seconds while Channelling Supported Skills
|level21_stat1_id                        = cast_while_channelling_time_ms
|level21_stat1_value                     = 350
|level22_stat_text                       = Trigger a Supported Spell every 0.34 seconds while Channelling Supported Skills
|level22_stat1_id                        = cast_while_channelling_time_ms
|level22_stat1_value                     = 340
|level23_stat_text                       = Trigger a Supported Spell every 0.34 seconds while Channelling Supported Skills
|level23_stat1_id                        = cast_while_channelling_time_ms
|level23_stat1_value                     = 340
|level24_stat_text                       = Trigger a Supported Spell every 0.33 seconds while Channelling Supported Skills
|level24_stat1_id                        = cast_while_channelling_time_ms
|level24_stat1_value                     = 330
|level25_stat_text                       = Trigger a Supported Spell every 0.33 seconds while Channelling Supported Skills
|level25_stat1_id                        = cast_while_channelling_time_ms
|level25_stat1_value                     = 330
|level26_stat_text                       = Trigger a Supported Spell every 0.32 seconds while Channelling Supported Skills
|level26_stat1_id                        = cast_while_channelling_time_ms
|level26_stat1_value                     = 320
|level27_stat_text                       = Trigger a Supported Spell every 0.32 seconds while Channelling Supported Skills
|level27_stat1_id                        = cast_while_channelling_time_ms
|level27_stat1_value                     = 320
|level28_stat_text                       = Trigger a Supported Spell every 0.31 seconds while Channelling Supported Skills
|level28_stat1_id                        = cast_while_channelling_time_ms
|level28_stat1_value                     = 310
|level29_stat_text                       = Trigger a Supported Spell every 0.31 seconds while Channelling Supported Skills
|level29_stat1_id                        = cast_while_channelling_time_ms
|level29_stat1_value                     = 310
|level30_stat_text                       = Trigger a Supported Spell every 0.30 seconds while Channelling Supported Skills
|level30_stat1_id                        = cast_while_channelling_time_ms
|level30_stat1_value                     = 300
|level31_stat_text                       = Trigger a Supported Spell every 0.30 seconds while Channelling Supported Skills
|level31_stat1_id                        = cast_while_channelling_time_ms
|level31_stat1_value                     = 300
|level32_stat_text                       = Trigger a Supported Spell every 0.30 seconds while Channelling Supported Skills
|level32_stat1_id                        = cast_while_channelling_time_ms
|level32_stat1_value                     = 300
|level33_stat_text                       = Trigger a Supported Spell every 0.30 seconds while Channelling Supported Skills
|level33_stat1_id                        = cast_while_channelling_time_ms
|level33_stat1_value                     = 300
|level34_stat_text                       = Trigger a Supported Spell every 0.29 seconds while Channelling Supported Skills
|level34_stat1_id                        = cast_while_channelling_time_ms
|level34_stat1_value                     = 290
|level35_stat_text                       = Trigger a Supported Spell every 0.29 seconds while Channelling Supported Skills
|level35_stat1_id                        = cast_while_channelling_time_ms
|level35_stat1_value                     = 290
|level36_stat_text                       = Trigger a Supported Spell every 0.29 seconds while Channelling Supported Skills
|level36_stat1_id                        = cast_while_channelling_time_ms
|level36_stat1_value                     = 290
|level37_stat_text                       = Trigger a Supported Spell every 0.29 seconds while Channelling Supported Skills
|level37_stat1_id                        = cast_while_channelling_time_ms
|level37_stat1_value                     = 290
|level38_stat_text                       = Trigger a Supported Spell every 0.28 seconds while Channelling Supported Skills
|level38_stat1_id                        = cast_while_channelling_time_ms
|level38_stat1_value                     = 280
|level39_stat_text                       = Trigger a Supported Spell every 0.28 seconds while Channelling Supported Skills
|level39_stat1_id                        = cast_while_channelling_time_ms
|level39_stat1_value                     = 280
|level40_stat_text                       = Trigger a Supported Spell every 0.28 seconds while Channelling Supported Skills
|level40_stat1_id                        = cast_while_channelling_time_ms
|level40_stat1_value                     = 280
|gem_description                         = Must support both a channelling skill and a non-channelling spell skill to work. The channelling skill will trigger a spell periodically while channelling. Cannot support skills used by totems, traps, or mines. Vaal skills and skills with a reservation cannot be triggered.
|level1_dexterity_requirement            = 27
|level1_intelligence_requirement         = 40
|level1_experience                       = 0
|level2_dexterity_requirement            = 29
|level2_intelligence_requirement         = 41
|level2_experience                       = 388734
|level3_dexterity_requirement            = 30
|level3_intelligence_requirement         = 43
|level3_experience                       = 866171
|level4_dexterity_requirement            = 31
|level4_intelligence_requirement         = 45
|level4_experience                       = 1449957
|level5_dexterity_requirement            = 33
|level5_intelligence_requirement         = 47
|level5_experience                       = 2160316
|level6_dexterity_requirement            = 34
|level6_intelligence_requirement         = 49
|level6_experience                       = 3515827
|level7_dexterity_requirement            = 35
|level7_intelligence_requirement         = 51
|level7_experience                       = 4654704
|level8_dexterity_requirement            = 37
|level8_intelligence_requirement         = 53
|level8_experience                       = 6022937
|level9_dexterity_requirement            = 38
|level9_intelligence_requirement         = 55
|level9_experience                       = 7661275
|level10_dexterity_requirement           = 39
|level10_intelligence_requirement        = 57
|level10_experience                      = 9617923
|level11_dexterity_requirement           = 41
|level11_intelligence_requirement        = 58
|level11_experience                      = 13273107
|level12_dexterity_requirement           = 42
|level12_intelligence_requirement        = 60
|level12_experience                      = 16290434
|level13_dexterity_requirement           = 43
|level13_intelligence_requirement        = 62
|level13_experience                      = 19866666
|level14_dexterity_requirement           = 44
|level14_intelligence_requirement        = 64
|level14_experience                      = 24098333
|level15_dexterity_requirement           = 45
|level15_intelligence_requirement        = 65
|level15_experience                      = 26493411
|level16_dexterity_requirement           = 46
|level16_intelligence_requirement        = 66
|level16_experience                      = 34914474
|level17_dexterity_requirement           = 46
|level17_intelligence_requirement        = 67
|level17_experience                      = 51074457
|level18_dexterity_requirement           = 47
|level18_intelligence_requirement        = 68
|level18_experience                      = 92244824
|level19_dexterity_requirement           = 48
|level19_intelligence_requirement        = 69
|level19_experience                      = 179039272
|level20_dexterity_requirement           = 48
|level20_intelligence_requirement        = 70
|level20_experience                      = 336444335
|level21_dexterity_requirement           = 50
|level21_intelligence_requirement        = 72
|inventory_icon                          = Cast while Channelling Support
|release_version                         = 2.5.0
|quest_reward1_type                      = vendor
|quest_reward1_quest                     = The Eternal Nightmare
|quest_reward1_quest_id                  = a4q1
|quest_reward1_act                       = 4
|quest_reward1_npc                       = Petarus and Vanja
|quest_reward2_type                      = vendor
|quest_reward2_quest                     = Fallen from Grace
|quest_reward2_quest_id                  = a6q4
|quest_reward2_act                       = 6
|quest_reward2_npc                       = Lilly Roth
}}

'''Cast while Channelling Support''' is a [[support gem]] that [[trigger]]s linked non-channelling [[spell]]s while the character is using a [[channelled skill]].

==Skill functions and interactions==
* '''Triggered Spell Priority''': Similar to {{il|Cast on Critical Strike Support}}, Cast while Channelling only triggers one spell at a time. If multiple Spells are linked, the spells will cycle based on the order in which they are socketed.
* '''Casting Interval''': This support does '''not''' grant supported skills a [[cooldown]]. It triggers the supported spell exactly on the listed interval regardless of the cast time of the channelled spell. Modifiers that add a flat cooldown time (e.g. {{il|Lightning Conduit}}) add to a base a cooldown of 0 seconds; as long as the cooldown is less than the casting interval, the trigger rate is unaffected.
* '''Targeting''': Spells that target a location or direction target the cursor. 
* '''{{il|Spell Totem Support}}''': Cast while Channelling cannot support a skill gem that is supported by Spell Totem Support gem.

==Gem level progression==

{{Skill progression
| c1_abbr = Casting<br>Interval
| c1_header = Trigger a Supported Spell every x seconds while Channelling Supported Skills
| c1_pattern_extract = Trigger a Supported Spell every (%d+)%.(%d+) seconds while Channelling Supported Skills
| c1_pattern_value = %d.%ds
}}

{{Item acquisition}}

==Mods==
{{modifier table
|q_tables=mod_stats, spawn_weights
|q_join=mods._pageID=mod_stats._pageID, mods._pageID=spawn_weights._pageID
|q_where= mod_stats.id LIKE "%cast_while_channelling%" AND spawn_weights.weight > 0
|stat_text=1
|spawn_weights=1
|level=1
|generation_type=1
}}
==Version history==
{{Version history table header}}
{{Version history table row|3.17.0|
* Cast while Channelling Support now has "Supported Triggered Spells deal 30% less Damage" at all gem levels.
}}
{{Version history table row|3.16.0|
* Now has a 120% Cost and Reservation Multiplier (previously 140% for Attacks, and 100% for Spells).
}}
{{Version history table row|3.15.0|
* Trigger skill gems now cost mana.
* No longer has “Supported Triggered Spells deal 0-9% more Damage”.
* Quality on the Anomalous Cast While Channeling Support no longer grants “Supported Skills have 0-10% increased Attack and Cast Speed”. It now grants “Supported Skills have 0-10% increased Skill Effect Duration”.
}}
{{Version history table row|3.12.0|
* Now has alternative gem quality:<ref name=altgem/>
:{{c|gem|Anomalous}}: {{c|mod|Supported Skills have 0.5% increased Attack and Cast Speed}}
:{{c|gem|Divergent}}: {{c|mod|Supported Skills have 0.5% increased Effect of non-Damaging Ailments on Enemies}}
}}
{{Version history table row|2.5.0|
* Introduced to the game.
}}
{{Version history table end}}

==References==
{{reflist|refs=<ref name=altgem>{{cite web|url=https://www.pathofexile.com/forum/view-thread/2936122|title=Alternate Quality Gems in Path of Exile: Heist|date=September 17, 2020|accessdate=June 11, 2021|author=Bex_GGG|publisher=Official Path of Exile Forums}}</ref>
}}
{{Navbox Support Gems}}