Impulse IV is an active skill in AION Classic 5.0. The Revenant learns it from level 45. It recharges in 11 s.

Learned by

Class	Faction	Character level	Skill level
RevenantLearned automatically	Both factions	45–53	1–9
RevenantLearned automatically	Both factions	71–75	10–14

Taught by

Item	Skill level
Impulse IVRevenant (Skill Book)
[Event] Impulse IVRevenant (Skill Book)