Giragos, the Redeemed

Menace, Trample, Indestructible
Giragos, the Redeemed enters the battlefield with
X +1/+1 counters on it.
Giragos, the Redeemed's power and toughness
are each equal to the number of land cards in
your graveyard.
At the beginning of your upkeep, you lose 3 life
unless you sacrifice a land.