The Labyrinth

{1}{t}: Any number of creatures attacking you
untap and all combat damage that would
have been done is prevented.
{1}{g}{t}: Target Forest becomes a 4/4 Treefolk
with Reach until end of turn.
{x}{r}{t}: Create {x} number of 1/1 (red/black)
Goblin Tokens with Deathtouch & Haste.