Experiment Kraj is a rare Legendary Creature — Ooze Mutant card from Commander Masters (CMM), collector number 337. Current market price: $0.38 (foil $0.87), TCGplayer market prices via Scryfall.
Experiment Kraj has all activated abilities of each other creature with a +1/+1 counter on it. {T}: Put a +1/+1 counter on target creature.