Sylpht, World Eater

When Sylpht, World Eater attacks, each player sacrifices two lands.
Whenever a land is put into the graveyard from anywhere, put a +1/+1 counter on Sylpht
Remove a +1/+1 counter from Sylpht: Put a land
card from your hand onto the battlefield.
With each world consumed, he gains more power. The
more power he has, the hungrier he becomes.