The Sussiest

Imposter(If your opponent has 1 creature or less when this card ETBs, they get 7 2/2 Crewmates, 1 2/2 Engineer, 1 2/2 Scientist, and 1 0/1 Guardian Angel. You can destroy 1 target creature that your opponent controls every upkeep. If your opponent has 1 creature left, you win the game.)