Ghastbark Twins

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)
Ghastbark Twins can block an additional creature each combat.

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.

Aggressive Mammoth

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

Declare Dominance

Target creature gets +3/+3 until end of turn. All creatures able to block it this turn do so.

Druid of the Cowl

Plummet

Meteor Golem

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

Bristling Boar

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

Pelakka Wurm

Trample
When Pelakka Wurm enters, you gain 7 life.
When Pelakka Wurm dies, draw a card.

Colossal Majesty

At the beginning of your upkeep, if you control a creature with power 4 or greater, draw a card.

Titanic Growth

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

Vivien of the Arkbow

+2: Put two +1/+1 counters on up to one target creature.
−3: Target creature you control deals damage equal to its power to target creature you don't control.
−9: Creatures you control get +4/+4 and gain trample until end of turn.

Skalla Wolf

When Skalla Wolf enters, look at the top five cards of your library. You may reveal a green card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Oakenform

Enchant creature
Enchanted creature gets +3/+3.

Colossal Dreadmaw

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

Forest

Reclamation Sage

When this creature enters, you may destroy target artifact or enchantment.

Rabid Bite

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

Ursine Champion

{5}{G}: Ursine Champion gets +3/+3 and becomes a Bear Berserker until end of turn. Activate only once each turn.

Vivien's Jaguar

Reach (This creature can block creatures with flying.)
{2}{G}: Return Vivien's Jaguar from your graveyard to your hand. Activate only if you control a Vivien planeswalker.