Tranquillity I is an active skill in AION Classic 5.0. The Cleric learns it from level 13. It casts in 0.5 s and recharges in 90 s.

Learned by

Class	Faction	Character level	Skill level
ClericLearned automatically	Both factions	13	1
ClericLearned automatically	Both factions	17–24	2–9
ClericLearned automatically	Both factions	71–75	10–14

Taught by

Item	Skill level
Tranquillity ICleric (Skill Book)
[Event] Tranquillity ICleric (Skill Book)