Hellenistic rulers: conceivable epithets

[Maion Maroneios]

Ok, so... if lion is Leon, then "The Lion" would be... ?
And what about: The Bull, The Gryphon? The Serpent?

The Lion would be Leon. Plain, no added stuff. As for Serpent, that would probably be Echydna. Don't know about Gryphon. Anyway, none of them would be used as an epithet for a ruler, mind you. Too fantasy-style if you get me.

Umm what about
1.the demon - Not very sure about that one
2.the bringer of death - You are very into dark stuff aren't you? Anyway, Aggeliaphoros Thanatou (Messenger of Death) or Thanatophoros
3.The Greek word for America - Esperia
4.the colored/rainbowed one - Polychrous (many-colored) could probably work.
5.the restorer - Could you make this more specific?
6.the insane? - Epimanes

Maion