Danitha, Spear of Agony is a uncommon Legendary Creature — Human Knight card from Reality Fracture (FRA), collector number 227. Current market price: $0.19 (foil $0.27), TCGplayer market prices via Scryfall.
First strike Whenever you cast a spell that targets an opponent or a creature an opponent controls, put a +1/+1 counter on Danitha.