Kaya, Ghost Haunter is a rare Legendary Planeswalker — Kaya card from Mystery Booster Playtest Cards 2019 (CMB1), collector number 94. Current market price: $0.43, TCGplayer market prices via Scryfall.
0: Exile Kaya, Ghost Haunter haunting target creature for as long as that creature remains on the battlefield. −1: You get an emblem with, "At the beginning of your upkeep, this emblem deals 3 damage to the owner of target haunted creature." −2: You get an emblem with, "At the beginning of your upkeep, gain control of target haunted creature for as long as it remains haunted."