Have (Arena)

Verdant Rebirth

Until end of turn, target creature gains "When this creature dies, return it to its owner's hand."
Draw a card.

Druid of the Cowl

Aggressive Mammoth

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)
Other creatures you control have trample.

Elvish Rejuvenator

When Elvish Rejuvenator enters, look at the top five cards of your library. You may put a land card from among them onto the battlefield tapped. Put the rest on the bottom of your library in a random order.

Ghalta, Primal Hunger

This spell costs {X} less to cast, where X is the total power of creatures you control.
Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

Titanic Growth

Target creature gets +4/+4 until end of turn.

Llanowar Elves

Meteor Golem

When this creature enters, destroy target nonland permanent an opponent controls.

Greenwood Sentinel

Vigilance (Attacking doesn't cause this creature to tap.)

Bristling Boar

Bristling Boar can't be blocked by more than one creature.

Gigantosaurus

Blanchwood Armor

Enchant creature
Enchanted creature gets +1/+1 for each Forest you control.

Forest

Prodigious Growth

Enchant creature
Enchanted creature gets +7/+7 and has trample.

Vigilant Baloth

Centaur Courser

Highland Game

When Highland Game dies, you gain 2 life.

Plummet

Rabid Bite

Target creature you control deals damage equal to its power to target creature you don't control.