White Tiger, Ava Ayala is a uncommon Legendary Creature — Human Hero card from Marvel Super Heroes (MSH), collector number 196. Current market price: $0.12 (foil $0.28), TCGplayer market prices via Scryfall.
Power-up — {5}{G}: Put a +1/+1 counter on White Tiger and create The Tiger God, a legendary 4/4 green Cat God creature token with "The Tiger God can't be blocked by more than one creature." (Activate each power-up ability only once. Reduce the cost by her mana cost if she entered this turn.)