ETCHEDCheapest priced copy (Murders at Karlov Manor Commander): $0.99 at Card Kingdom, foil, near mint, their price list as of .
Mirko, Obsessive Theorist 
Legendary Creature — Vampire Detective · 1/3 · Mythic · Murders at Karlov Manor Commander · #50
Flying, vigilance
Whenever you surveil, put a +1/+1 counter on Mirko.
At the beginning of your end step, you may return target creature card with power less than Mirko's from your graveyard to the battlefield with a finality counter on it. (If it would die, exile it instead.)
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
3 printings · $0.99 to $1.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Murders at Karlov Manor Commander | 2 | Mythic | — | $0.99 |
| Murders at Karlov Manor Commander | 50 | Mythic | — | — |
| Murders at Karlov Manor Commander | 316 | Mythic | $1.29 | $1.99 |
5 rulings from Wizards of the Coast
- 2 February 2024An ability that triggers "whenever you surveil" triggers after you're done surveilling, even if you have fewer cards in your library than the number of cards you're instructed to surveil. It even triggers if you have no cards in your library.
- 2 February 2024Multiple finality counters on a single permanent are redundant.
- 2 February 2024Finality counters work on any permanent, not only creatures. If a permanent with a finality counter on it would go to a graveyard from the battlefield, exile it instead.
- 2 February 2024Finality counters don't stop permanents from going to zones other than the graveyard from the battlefield. For example, if a permanent with a finality counter on it would be put into its owner's hand from the battlefield, it does so normally.
- 2 February 2024Finality counters aren't keyword counters, and a finality counter doesn't give any abilities to the permanent it's on. If that permanent loses its abilities and then would go to a graveyard, it will still be exiled instead.