Cheapest priced copy (Murders at Karlov Manor): $0.99 at Card Kingdom, near mint, their price list as of .
Kaya, Spirits' Justice 
Legendary Planeswalker — Kaya · Mythic · Murders at Karlov Manor · #335
Whenever one or more creatures you control and/or creature cards in your graveyard are put into exile, you may choose a creature card from among them. Until end of turn, target token you control becomes a copy of it, except it has flying.
+2: Surveil 2, then exile a card from a graveyard.
+1: Create a 1/1 white and black Spirit creature token with flying.
−2: Exile target creature you control. For each other player, exile up to one target creature that player controls.
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
5 printings · $0.99 to $2.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Murders at Karlov Manor | 211 | Mythic | $0.99 | $0.99 |
| Murders at Karlov Manor | 335 | Mythic | $0.99 | $1.99 |
| Murders at Karlov Manor Promos | 211p | Mythic | $0.99 | $2.49 |
| Murders at Karlov Manor Promos | 211s | Mythic | — | $1.49 |
| Planeswalker Championship Promos | 2024-06 | Mythic | — | — |
3 rulings from Wizards of the Coast
- 2 February 2024If a creature card that was exiled is no longer in exile when Kaya, Spirits' Justice's first ability resolves (perhaps because of Pull from Eternity or a similar effect), you can't choose that creature card with that ability.
- 2 February 2024You choose all targets for Kaya, Spirits' Justice's last ability.
- 2 February 2024The target token copies the printed values of the card in exile, with the noted exception. It doesn't matter if that card was a copy of something else when it was on the battlefield.