The Theorist, Jace Beleren

At the beginning of each opponent's draw step, you draw a card.

[+1]: Create a 1/1 blue Illusion creature token.

[−2]: For each opponent, return up to one target artifact or creature that player controls to its owner's hand.

[−6]: Draw three cards. Then put X +1/+1 counters on each creature you control, where X is the number of cards in your hand.