Duskana, the Rage Mother is a mythic Legendary Creature — Bear card from Murders at Karlov Manor Commander (MKC), collector number 312. Current market price: $3.60 (foil $2.94), TCGplayer market prices via Scryfall.
When Duskana enters, draw a card for each creature you control with base power and toughness 2/2. Whenever a creature you control with base power and toughness 2/2 attacks, it gets +3/+3 until end of turn.