The Bright and Bulbed

Pick a partner (an opponent). They will remain your partner for the rest of the game.

During your end step, draw a card for each of the following if:
•You control more permanents than your partner.
•You have less cards in hand than your partner.
•You have less cards in your graveyard than your partner.
{bull}You are playing with a playmat.

You have no maximum hand size for the rest of the game.