Whirlwind Slash IV is an active skill in AION Classic 5.0. The Assassin learns it from level 60. It recharges in 30 s.

Learned by

Class	Faction	Character level	Skill level
AssassinLearned automatically	Both factions	60–68	1–9
AssassinLearned automatically	Both factions	71–75	10–14

Taught by

Item	Skill level
Whirlwind Slash IVAssassin (Skill Book)