Autochthon Wurm

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.)
Trample

Knight of the Tusk

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

Wall of Tanglecord

Defender
{G}: Wall of Tanglecord gains reach until end of turn. (It can block creatures with flying.)

Ancient Crab

Kami of Old Stone

Ancient Spider

First strike; reach (This creature can block creatures with flying.)

Rotting Mastodon

Wall of Denial

Defender, flying
Shroud (This creature can't be the target of spells or abilities.)

Ivorytusk Fortress

Untap each creature you control with a +1/+1 counter on it during each other player's untap step.