Leinore, Autumn Sovereign is a mythic Legendary Creature — Human Noble card from Midnight Hunt Commander (MIC), collector number 39. Current market price: $2.23, TCGplayer market prices via Scryfall.
Coven — At the beginning of combat on your turn, put a +1/+1 counter on up to one target creature you control. Then if you control three or more creatures with different powers, draw a card.