Chagren, Ashiok's Lobotomist

Whenever you cast a blue spell, mill the top card of target player's library.

Whenever you cast a black spell, mill the top card of target player's library.

As long as you have more than 10 cards in your graveyard, you may mill 2 cards then you may search your graveyard for a card named Ashiok, Sculptor of Fears, reveal it, and put it into your hand. If you do, exile Chagren, Ashiok's Lobotomist.

Now, where was I?