Yonker, Merchant of Mysteries

At the beginning of your upkeep, choose a player.
That player rolls a six-sided die. This ability has
the indicated effect.
1, 2, or 3 — That player creates a 2/2 blue and
green Dog Bat Mutant creature token with flying.
4 or 5 — That player may cast a sorcery from
their hand without paying it's mana cost.
6 — That player discards their hand, then
draws seven cards.
Then if you chose an opponent with this ability,
draw two cards.