Erosion I is an active skill in AION Classic 5.0. The Sorcerer and the Spiritmaster learn it from level 1. It recharges in 3 s.

Learned by

Class	Faction	Character level	Skill level
SorcererSpiritmasterLearned automatically	Both factions	1	1
SorcererSpiritmasterLearned automatically	Both factions	3	2
SorcererSpiritmasterLearned automatically	Both factions	5	3
SorcererSpiritmasterLearned automatically	Both factions	7	4
SorcererSpiritmasterLearned automatically	Both factions	9–13	5–9
SorcererSpiritmasterLearned automatically	Both factions	71–75	10–14

Taught by

Item	Skill level
Erosion IUniversal (Skill Book)
[Event] Erosion IUniversal (Skill Book)