Waffle Fifi, The Angry

{r}{r}{b}{t} Gain control of all creatures, Untap them, they get +X/+X,
where x is equal to the amount of creatures you control,
Indestructible, Haste, and Infect until the end of the turn rotation
Waffle Fifi, The Angry, gets +X/+0, where X is the amount of creatures you control