Teysa Karlov is a rare Legendary Creature — Human Advisor card from Multiverse Legends (MUL), collector number 61. Current market price: $2.11 (foil $3.74), TCGplayer market prices via Scryfall.
If a creature dying causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time. Creature tokens you control have vigilance and lifelink.