no creature damage (this is my WB deck)

At the beginning of the end step, if no creatures are on the battlefield, sacrifice this enchantment. : This enchantment deals 1 damage to each creature and each player.

Black creatures can't attack or block.

All creatures are black.

: The next time a black source of your choice would deal damage to you this turn, prevent that damage.

Prevent all noncombat damage that would be dealt to creatures you control.