Rotting Mastodon

Choose one — • Put target creature on top of its owner's library. • Jeskai Charm deals 4 damage to target opponent or planeswalker. • Creatures you control get +1/+1 and gain lifelink until end of turn.

Attacking creatures get +2/+0 until end of turn.

Destroy target creature. If that creature had a +1/+1 counter on it, create a 1/1 green Snake creature token.

Whenever you cast a noncreature spell, you may pay 1. If you do, create a 1/1 red Goblin creature token with haste.

Whenever a nontoken creature you control attacks, create a 1/1 red Goblin creature token that's tapped and attacking. Sacrifice this enchantment: Creatures you control get +0/+3 until end of turn.

Whenever one or more cards are put into exile from your graveyard, put that many +1/+1 counters on this creature.

Trample When this creature enters, each opponent loses 3 life and you gain 3 life.