Whirlwind Slash I is an active skill in AION Classic 5.0. The Assassin learns it from level 13. It recharges in 30 s.

Learned by

Class	Faction	Character level	Skill level
AssassinLearned automatically	Both factions	13	1
AssassinLearned automatically	Both factions	26–33	2–9
AssassinLearned automatically	Both factions	71–75	10–14

Taught by

Item	Skill level
Whirlwind Slash IAssassin (Skill Book)
[Event] Whirlwind Slash IAssassin (Skill Book)