Thelon, Creator of Thallids

Each creature gets +1/+1 for each spore counter on it.

Creatures whose name includes the word Thallid have vigilance, reach, and trample.

At the beginning of your upkeep put a spore counter on each Fungus creature you control.

{b}{g}{w}{u}, Sacrifice a creature: Return target Fungus from your graveyard to the battlefield, put a spore counter on each Fungus you control, gain 4 life, and draw a card.