Comet, Stellar Pup - Mystery Booster 2

[0]: Roll a six-sided die.

1 or 2 — [+2], then create two 1/1 green Squirrel creature tokens. They gain haste until end of turn.

3 — [−1], then return a card with mana value 2 or less from your graveyard to your hand.

4 or 5 — Comet deals damage equal to the number of loyalty counters on him to a creature or player, then [−2].

6 — [+1], and you may activate Comet's loyalty ability two more times this turn.