The Dungeon Master

At the beginning of each player's upkeep, that
player rolls a six-sided die. This ability has the indicated effect:
1 - Do nothing
2 - The Dungeon Master deals 3 damage to them.
3 - That player discards a card.
4 - That player gains 3 life.
5 - That player draws a card.
6 - Re-roll the dice.
If you would roll a die, you may choose the result instead.