Sivairtizan, Mind Overlord

Flying, hexproof, indestructible, prowess
When Sivairtizan, Mind Overlord enters the battlefield, you Scri 7, then draw seven cards.
Creatures you control have flying and hexproof.
You hace no maxîmum hand size.
If Sivairtizan, Mind Overlord would be put into a graveyard from anywhere, shuffle all cards you
own from exile and all cards in your graveyard into your library. Then, return Sivairtizan, Mind Overlord to your hand.