Worldsoul Colossus is a uncommon Creature — Elemental card from Guilds of Ravnica (GRN), collector number 215. Current market price: $0.09 (foil $0.54), TCGplayer market prices via Scryfall.
Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) This creature enters with X +1/+1 counters on it.