Aaron, He Who Wipes Clean

Companion—Your name is Aaron.

When Aaron enters the battlefield, choose a card type, then create a Food token and a 1/1 white Cat creature token.

"HUOOYYEEAAAHHH!"-{3}{w}, {t}, Exile
Aaron: Destroy each permanent of each type chosen by Aaron. Activate only as a sorcery and only if you control three or more of each of the chosen types as you activate this ability.