Craw Wurm

Nightmare

Flying (This creature can't be blocked except by creatures with flying or reach.)
Nightmare's power and toughness are each equal to the number of Swamps you control.

Howl from Beyond

Target creature gets +X/+0 until end of turn.

Terror

Destroy target nonartifact, nonblack creature. It can't be regenerated.

Forest

Grizzly Bears

Swamp

Llanowar Elves

Sengir Vampire

Flying (This creature can't be blocked except by creatures with flying or reach.)
Whenever a creature dealt damage by this creature this turn dies, put a +1/+1 counter on this creature.

Force of Nature

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)
At the beginning of your upkeep, this creature deals 8 damage to you unless you pay {G}{G}{G}{G}.

Plague Rats

Plague Rats's power and toughness are each equal to the number of creatures named Plague Rats on the battlefield.

Wooden Sphere

Whenever a player casts a green spell, you may pay {1}. If you do, you gain 1 life.

Birds of Paradise

Mox Jet

Elvish Archers

Giant Spider

Reach (This creature can block creatures with flying.)

Hypnotic Specter

Flying
Whenever this creature deals damage to an opponent, that player discards a card at random.