Apply Poison III is a toggle skill in AION Classic 5.0. The Assassin learns it from level 40.

Learned by

Class	Faction	Character level	Skill level
AssassinLearned automatically	Both factions	40–48	1–9
AssassinLearned automatically	Both factions	71–75	10–14

Taught by

Item	Skill level
Apply Poison IIIAssassin (Skill Book)
[Event] Apply Poison IIIAssassin (Skill Book)