Deathspore Thallid is a common Creature — Zombie Fungus card from Time Spiral Remastered (TSR), collector number 109. Current market price: $0.32 (foil $0.65), TCGplayer market prices via Scryfall.
At the beginning of your upkeep, put a spore counter on this creature. Remove three spore counters from this creature: Create a 1/1 green Saproling creature token. Sacrifice a Saproling: Target creature gets -1/-1 until end of turn.