Mithor, The Aether Mage

Lifelink
When Mithor, The Aether Mage enters the battlefield, you get {e} for each artifact you control.
Pay {e}{e}{e} : Exile another target creature under your control, then return it to the battlefield under it's owner's control.
Pay {e}{e}{e}{e}{e}{e}{e}{e}{e}{e} : Draw a card for each artifact you control.