Phyrexian Reaper

Flying

Whenever this creature becomes blocked by a white creature, destroy that creature. It can't be regenerated.

This creature can't block.

Whenever this creature deals combat damage to a creature, destroy that creature. It can't be regenerated.

Whenever this creature blocks or becomes blocked by a green or white creature, destroy that creature at end of combat.

When this creature leaves the battlefield, destroy target white creature. It can't be regenerated.

Non-Eye creatures you control can't attack.

Whenever this creature becomes blocked by a creature, destroy that creature.

Whenever this creature blocks a creature, destroy that creature at end of combat.

Whenever this creature becomes blocked by a non-Wall creature, destroy that creature at end of combat.