[quote=@Blackmist16]
[@Host] And he is Immortal and Invulnerable to Physical and Magical Damage, and he is Omnipotent and only Omni Purification or Ultimate Good can harm him.
[/quote]

The corruption aspect is fine; no problems there. Omnipotence is fine in a dimension, but Existence-wide omnipotence would probably be difficult to pull off (or to define). Maybe a set of really strong abilities would substitute well instead? It's usually a good idea to have an express definition for what someone can and cannot do (even if you're the only person who knows those details).