Sri-Yantra, Green

All Green Creatures gain:
{t}: Add {g} to your Mana Pool.
{t}: Regenerate Target Creature.
{g}{g}: Put a 1/2 Elf Token into Play.
{x}, Sacrifice Sri-Yantra, Green: Creatures
with Power X or less can't attack this turn.
"Through this Tool you speak with Gaia."