Uchbenbak, the Great Mistake
Buy at Card Kingdom$0.35

Cheapest priced copy (The Lost Caverns of Ixalan): $0.35 at Card Kingdom, near mint, their price list as of .

Uchbenbak, the Great Mistake {3}{U}{B}

Legendary Creature — Skeleton Horror · 6/4 · Uncommon · The Lost Caverns of Ixalan · #242

Vigilance, menace

Descend 8 — {4}{U}{B}: Return this card from your graveyard to the battlefield with a finality counter on it. Activate only if there are eight or more permanent cards in your graveyard and only as a sorcery. (If a creature with a finality counter on it would die, exile it instead.)

2 printings · $0.35 to $0.49 at Card Kingdom
SetNumberRarityCard KingdomFoil
The Lost Caverns of Ixalan242Uncommon$0.35$0.49
The Lost Caverns of Ixalan310Uncommon$0.35$0.49
6 rulings from Wizards of the Coast
  1. 10 November 2023Cards with the ability word "descend N" have abilities that care if you have at least N permanent cards in your graveyard.
  2. 10 November 2023Some descend triggered abilities include intervening "if" clauses (i.e. "if you have [four or eight] permanent cards in your graveyard" in the middle of the ability). Each of these abilities checks your graveyard at the moment it would trigger to see if it does. If you don't have the required number of permanent cards in your graveyard at that time, the ability doesn't trigger at all. If it does trigger, it will check again as it tries to resolve. If you don't have the required number of permanent cards in your graveyard at that time, the ability won't resolve and none of its effects will happen.
  3. 10 November 2023Multiple finality counters on a single permanent are redundant.
  4. 10 November 2023Finality counters work on any permanent, not only creatures. If a permanent with a finality counter on it would be put into a graveyard from the battlefield, exile it instead.
  5. 10 November 2023Finality 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.
  6. 10 November 2023Finality 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.