Katie, Street Chef

At the beginning of your endstep, each player exiles the top card of their library. Until your next endstep, each player may play the card they exiled this way.

Whenever a player plays a land from exile or cast a spell from exile, you put a +1/+1 on target creature and create a food token. (It's an artifact with "{2}, {t}, Sacrifice this artifact: You gain 3 life.)