Mordenkainen

Legendary Planeswalker — Mordenkainen

[+2]: Draw two cards, then put a card from your hand on the bottom of your library. [−2]: Create a blue Dog Illusion creature token with "This token's power and toughness are each equal to twice the number of cards in your hand." [−10]: Exchange your hand and library, then shuffle. You get an emblem with "You have no maximum hand size."