Cast while Channelling Support

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Cast while Channelling SupportSupport, Channelling, Spell, Trigger
Icon: W
Level: (1-20)
Requires Level 38Must 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.Trigger a Supported Spell every (0.45-0.35) seconds while Channelling Supported Skills
Supported Triggered Spells deal 30% less Damage
You cannot Cast Supported Triggerable Spells directly
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 Active Skill Gem you wish to augment. Right click to remove from a socket.
Cast while Channelling Support inventory icon.png
Acquisition
Drop level: 38
Vendor Offer
1x Scroll Fragment
Metadata
Item class: Support Gem
Metadata ID: Metadata/Items/Gems/SupportGemCastWhileChannelling

For the awakened variant, see Awakened Cast while Channelling Support.

Cast while Channelling Support is a support gem that triggers linked non-channeling spells while the character is using a channelled skill.

Skill functions and interactions

  • Triggered Spell Priority: Cast while Channelling follows the same restrictions as other trigger support gems such as Cast On Critical Strike SupportCast On Critical Strike SupportCritical, Support, Spell, Trigger
    Icon: &
    Level: (1-20)
    Cooldown Time: 0.15 sec
    Requires Level 38Must support both an attack skill and a spell skill to work. The attack skill will trigger a spell when it critically strikes an enemy. Cannot support totems, traps, or mines. Vaal skills, channelling skills, and skills with a reservation cannot be triggered.Supported Attacks will Trigger a Supported Spell when you Crit an Enemy
    Supported Skills deal (19-10)% less Spell Damage
    You cannot Cast Supported Triggerable Spells directly
    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 Active Skill Gem you wish to augment. Right click to remove from a socket.
    , in that only one spell can be triggered per event. If multiple Spells are linked, the spells will cycle based on the order in which they are socketed.
  • Casting Interval: Unlike Cast On Critical Strike SupportCast On Critical Strike SupportCritical, Support, Spell, Trigger
    Icon: &
    Level: (1-20)
    Cooldown Time: 0.15 sec
    Requires Level 38Must support both an attack skill and a spell skill to work. The attack skill will trigger a spell when it critically strikes an enemy. Cannot support totems, traps, or mines. Vaal skills, channelling skills, and skills with a reservation cannot be triggered.Supported Attacks will Trigger a Supported Spell when you Crit an Enemy
    Supported Skills deal (19-10)% less Spell Damage
    You cannot Cast Supported Triggerable Spells directly
    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 Active Skill Gem you wish to augment. Right click to remove from a socket.
    , the listed interval is not a cooldown. Cast while Channelling casts the trigger spell exactly on the listed interval regardless of the cast time of the channeled spell. Modifiers that add a flat cooldown time (e.g. Lightning ConduitLightning ConduitSpell, AoE, Lightning
    Level: (1-20)
    Cost: (6-16) Mana
    Cast Time: 0.50 sec
    Critical Strike Chance: 6.00%
    Effectiveness of Added Damage: 190%
    Requires Level 28Lightning strikes all Shocked enemies around a targeted location, then removes Shock from those enemies. Shocks cannot expire on enemies in range while casting this spell. Cannot be supported by Spell Cascade or Unleash.Deals (43-516) to (130-1548) Lightning Damage
    Cannot inflict Shock
    This Spell's Cast Time is added to its Cooldown if Triggered
    (10-20)% more Damage with Hits per 5% Shock Effect on Enemy

    Additional Effects per 1% Quality:
    1% increased Damage
    Place into an item socket of the right colour to gain this skill. Right click to remove from a socket.
    Lightning Conduit skill icon.png
    ) adds to a base a cooldown of 0 seconds; as long as the cooldown is less than the casting interval, the trigger rate is unaffected.
  • Spell Totem SupportSpell Totem SupportSupport, Spell, Totem
    Icon: T
    Level: (1-20)
    Cost & Reservation Multiplier: 200%
    Requires Level 8Supports spell skills that are not triggered. Instead of casting that spell, you will summon a totem that casts the spell for you.Supported Skills will summon a Totem which uses that Skill
    Totem lasts 8 seconds
    Supported Skills deal (49-40)% less Damage
    Supported Skills have 40% less Cast Speed

    Additional Effects per 1% Quality:
    Supported Skills have 1% increased Totem Placement speed
    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 Active Skill Gem you wish to augment. Right click to remove from a socket.
    : Cast while Channelling cannot support a skill gem that is supported by Spell Totem Support gem.

Gem level progression

LevelRequired LevelRequired DexterityRequired IntelligenceCasting
Interval
Exp.Total Exp.
13827400.45s00
24029410.44s388734388734
34230430.44s477437866171
44431450.43s5837861449957
54633470.43s7103592160316
64834490.42s13555113515827
75035510.42s11388774654704
85237530.41s13682336022937
95438550.41s16383387661275
105639570.4s19566489617923
115841580.4s365518413273107
126042600.39s301732716290434
136243620.39s357623219866666
146444640.38s423166724098333
156545650.38s239507826493411
166646660.37s842106334914474
176746670.37s1615998351074457
186847680.36s4117036792244824
196948690.36s86794448179039272
207048700.35s157405063336444335
217250720.35sN/AN/A
2274N/AN/A0.34sN/AN/A
2376N/AN/A0.34sN/AN/A
2478N/AN/A0.33sN/AN/A
2580N/AN/A0.33sN/AN/A
2682N/AN/A0.32sN/AN/A
2784N/AN/A0.32sN/AN/A
2886N/AN/A0.31sN/AN/A
2988N/AN/A0.31sN/AN/A
3090N/AN/A0.3sN/AN/A
3191N/AN/A0.3sN/AN/A
3292N/AN/A0.3sN/AN/A
3393N/AN/A0.3sN/AN/A
3494N/AN/A0.29sN/AN/A
3595N/AN/A0.29sN/AN/A
3696N/AN/A0.29sN/AN/A
3797N/AN/A0.29sN/AN/A
3898N/AN/A0.28sN/AN/A
3999N/AN/A0.28sN/AN/A
40100N/AN/A0.28sN/AN/A

Gem quality

Type Stats (per 1% quality) Weight
Superior Supported Channelling Skills deal 0.5% increased Damage
Supported Triggered Spells deal 0.5% increased Damage
50
Anomalous Supported Skills have 0.5% increased Skill Effect Duration 100
Divergent Supported Triggered Spells have 0.5% increased Effect of Non-Damaging Ailments 100

Item acquisition
Questionmark.png

Cast while Channelling Support can drop anywhere.

Recipes

Cast while Channelling Support can be created from the following recipes:

AmountPartDescriptionMeta
13The CataclysmThe CataclysmThe Cataclysm card art.png13Level 21 Spell Gem
Corrupted
The mighty warriors traded in blows, the nimble archers in arrows, yet it was the brazen thaumaturgists who would bring catastrophe to all.
Random corrupted level 21 Spell gemA
9Gift of the Gemling QueenGift of the Gemling QueenGift of the Gemling Queen card art.png9Level 20 Support GemOur Lady Dialla,
as a symbol of our progress,
shines greater than all the gems.
Random level 20 support gemA
7Dialla's SubjugationDialla's SubjugationDialla's Subjugation card art.png7Support Gem
Quality: +23%
Corrupted
A symbol of beauty and innocence
The gems corrupted her mind
Malachai corrupted her gems
All but a glimmer of
greatness lost in madness
Random corrupted support gem with 23% qualityA
6The FoxThe FoxThe Fox card art.png6Level 20 Gem"Masters of wit, strength and cunning. To survive the harsh winters, you must be like the fox."
- Ezomyte Proverb
Random level 20 gemA
3Gemcutter's PromiseGemcutter's PromiseGemcutter's Promise card art.png3Gem
Quality: +20%
"I swore to use my position to help the people. What good is power when it just accumulates on the already-powerful?" - Erasmus, Imperial Gemcutter
Random gem with 20% qualityA
1Gemcutter's IncubatorGemcutter's IncubatorStack Size: 10Adds an incubated Quality Gem item to an equippable item
Item drops after killing {0} monsters
Right click this item then left click an item to apply it. The Incubated item drops after killing a specific number of monsters.
Shift click to unstack.
Random gem with 1–20% qualityA
1The VoidThe VoidThe Void card art.png1Reach into the Void and claim your prize.Random divination card set exchangeA

Vendor reward

This item can be bought at the listed NPC vendors, after completing the following quests:

Class →WitchShadowRangerDuelistMarauderTemplarScion
Quest ↓
The Eternal Nightmare
Act 4
Petarus and Vanja
Fallen from Grace
Act 6
Lilly Roth

Mods

NameGeneration TypeFor generated item/monster modifiers the minimum item/monster level respectively. Some generation types may not require this condition to be met, however item level restrictions may be raised to 80% of this value.StatsSpawn Weighting
The Shaper'sPrefix68Socketed Gems are Supported by Level 18 Cast While Channellinggrants_2h_support 0
attack_staff 0
staff_shaper 500
warstaff_shaper 500
The Shaper'sPrefix75Socketed Gems are Supported by Level 20 Cast While Channellinggrants_2h_support 0
attack_staff 0
staff_shaper 500
warstaff_shaper 500

Version history

Version Changes
3.17.0
  • Cast while Channelling Support now has "Supported Triggered Spells deal 30% less Damage" at all gem levels.
3.16.0
  • Now has a 120% Cost and Reservation Multiplier (previously 140% for Attacks, and 100% for Spells).
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”.
3.12.0
  • Now has alternative gem quality:[1]
Anomalous: Supported Skills have 0.5% increased Attack and Cast Speed
Divergent: Supported Skills have 0.5% increased Effect of non-Damaging Ailments on Enemies
2.5.0
  • Introduced to the game.

References

  1. Bex_GGG (September 17, 2020). "Alternate Quality Gems in Path of Exile: Heist". Official Path of Exile Forums. Retrieved June 11, 2021.


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