Sign of Lords Calamity

When Sign of Lords Calamity enter the battlefield, add +{x}/+{x} ({x} being the amount
of cards in your opponents Graveyard.)Creatures you control with a power greater than 3 gain Defender and Vigilance, for creatures with a power less than 3, they gain +2/+2 and haste. If you have a land in your Graveyard all creatures you control gain
+1/+1.