Mono-blue Infinite Mana

Exile two target artifacts, creatures, and/or lands you control, then return those cards to the battlefield under your control.

When this creature enters, you may exile an instant card from your hand. , : Copy the exiled card. You may cast the copy without paying its mana cost. X is the mana value of the exiled card.

Flash (You may cast this spell any time you could cast an instant.) When this creature enters, untap another target creature you control.

Flying When this creature enters, untap up to five lands.