Eliza, Mother of Millions

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for 1 or one mana of that creature's color.)
When Eliza enters the battlefield, if you control
no tapped lands, destroy all other creatures. For each creature destroyed in this way, its owner creates a 2/2 black Zombie creature token.
"Mother always said that I should make more friends."