Skaab-Tasm

Flying

{1}{U}: This creature's owner shuffles it into their library. If that player does, they reveal cards from the top of that library until a card named Mirror-Mad Phantasm is revealed. The player puts that card onto the battlefield and all other cards revealed this way into their graveyard.

When this creature enters, mill two cards.

As an additional cost to cast this spell, exile three creature cards from your graveyard.

Flying

You may cast this card from your graveyard.

Surveil 5. (Look at the top five cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)

Target player mills two cards.

Draw a card.