Kaheera, the Orphanguard is a rare Legendary Creature — Cat Beast card from Ikoria: Lair of Behemoths (IKO), collector number 224. Current market price: $0.91 (foil $0.65), TCGplayer market prices via Scryfall.
Companion — Each creature card in your starting deck is a Cat, Elemental, Nightmare, Dinosaur, or Beast card. (If this card is your chosen companion, you may put it into your hand from outside the game for {3} as a sorcery.) Vigilance Each other creature you control that's a Cat, Elemental, Nightmare, Dinosaur, or Beast gets +1/+1 and has vigilance.