Pounce

Target creature you control fights target creature you don't control. (Each deals damage equal to its power to the other.)

Ravenous Daggertooth

Enrage — Whenever Ravenous Daggertooth is dealt damage, you gain 2 life.

Return target card from your graveyard to your hand.

Target creature gets +3/+3 until end of turn.

Trample
When Crested Herdcaller enters the battlefield, create a 3/3 green Dinosaur creature token with trample.

Enrage — Whenever Ripjaw Raptor is dealt damage, draw a card.

Destroy target permanent. Its controller creates a 3/3 green Beast creature token.

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

{1}, {T}: Acorn Catapult deals 1 damage to any target. That permanent's controller or that player creates a 1/1 green Squirrel creature token.