Skarina, Sugarbrew Witch

Whenever you sacrifice a Food token for the first time each turn, you get an experience counter.

At the beginning of your upkeep, create a Food token for each experience counter you have. Then choose one or more.•{1}{g}: Sacrifice X Food tokens, then draw cards equal to half of X, rounded down.
•{1}{b}: Sacrifice X Food tokens, target creature gets -X/X until end of turn. Gain X life.
•{1}{w}: Sacrifice X Food tokens, then create X 1/1 White Zombie creature tokens with lifelink.