Destroyer of Worlds of Lands

Whenever a creature you control is dealt damage after your combat step but before your end step on your second turn if you have drawn a card with converted mana cost 3 or less, destroy up to six target creatures with toughness 3 or more and power equal to the number of creature cards in target player's graveyard. If you do, return up to 3 target creatures from a graveyard to the battlefield under your control. Then if creatures you control have a combined toughness of 4 or more, seperate those creatures i