Dynamo

18% increased maximum Mana
Guard Skills have 40% increased Duration [1]

Dynamo is a notable passive skill that grants increased maximum mana and increased duration of guard skills.

Anointment

Blight anointment to unlock the passive:

Oil #1	Oil #2	Oil #3	Outcome
Clear Oil	Sepia Oil	Azure Oil	Dynamo	18% increased maximum Mana Guard Skills have 40% increased Duration

Version	Changes
3.16.0	[Undocumented This change was not documented by any official sources. It was discovered through player testing or datamining.] Now grants 18% increased maximum Mana (down from 20%) and Guard Skills have 40% increased Duration (up from 25%). No longer grants Recover 10% of Mana over 1 second when you use a Guard Skill.
3.15.0	Now grants Recover 10% of Mana over 1 second when you use a guard skill (down from 20%)
3.11.0	[Undocumented This change was not documented by any official sources. It was discovered through player testing or datamining.] Now grants 20% increased maximum Mana (up from 16%). No longers grants 5% reduced Mana Cost of Skills. Instead, it now grants Guard Skills have 25% increased Duration and Recover 20% of Mana over 1 second when you use a Guard Skill.
2.0.0	Now grants 16% increased maximum Mana (up from 10%).
1.2.0	Many clusters throughout the tree now have new notables.