T'Ylera, Cavern Queen

At the beginning of your end step, create a 1/1 green Saproling creature token.
Whenever another Fungus or Saproling creature enters the battlefield under your control, put a spore counter on target creature.
Each Fungus and/or Saproling creature you control gets +X/+X and each other creature gets -X/-X, where X is equal to the number of spore counters on it.