Maphoet, the Untamed

Whenever a minotaur creature you control leaves
the battlefield, target player discards a card. If they
cannot, Maphoet, the Untamed deals 2 damage to
that player.
At the beginning of each player's upkeep, that
player discards a card.
At the beginning of the endstep, that player
shuffles their graveyard into their library and
draws a card.