Surprise Attack IV is an active skill in AION Classic 5.0. The Ranger and the Assassin learn it from level 37. It recharges in 16 s.

Learned by

Class	Faction	Character level	Skill level
RangerAssassinLearned automatically	Both factions	37–45	1–9
RangerAssassinLearned automatically	Both factions	71–75	10–14

Taught by

Item	Skill level
Surprise Attack IVUniversal (Skill Book)
[Event] Surprise Attack IVUniversal (Skill Book)