[Level 10] Abyssal Oath is a level 1 passive skill in AION Classic 5.0. Every class learns it at level 66.

Learned by

Class	Faction	Character level	Skill level
All classes	Both factions	66	1

Taught by

Item	Skill level
[Event] [Level 10] Abyssal OathUniversal (Stigma)	1