Cheapest priced copy (Double Masters 2022): $47.99 at Card Kingdom, near mint, their price list as of .
Ulamog, the Infinite Gyre 
Legendary Creature — Eldrazi · 10/10 · Mythic · Rise of the Eldrazi · #12
When you cast this spell, destroy target permanent.
Indestructible
Annihilator 4 (Whenever this creature attacks, defending player sacrifices four permanents of their choice.)
When Ulamog is put into a graveyard from anywhere, its owner shuffles their graveyard into their library.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
9 printings · $47.99 to $199.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Double Masters 2022 | 3 | Mythic | $47.99 | $54.99 |
| Double Masters 2022 | 337 | Mythic | $59.99 | $79.99 |
| Double Masters 2022 | 415 | Mythic | — | — |
| Double Masters 2022 | 577 | Mythic | — | $119.99 |
| Modern Masters 2015 | 6 | Mythic | $57.99 | $59.99 |
| Ultimate Box Topper | U4 | Mythic | — | $54.99Out of stock |
| Rise of the Eldrazi | 12 | Mythic | $57.99 | $199.99 |
| Ultimate Masters | 7 | Mythic | $47.99Out of stock | $49.99Out of stock |
| From the Vault: Legends | 14 | Mythic | — | $47.99Out of stock |
4 rulings from Wizards of the Coast
- 15 June 2010Annihilator abilities trigger and resolve during the declare attackers step. The defending player chooses and sacrifices the required number of permanents before they declare blockers. Any creatures sacrificed this way won't be able to block.
- 15 June 2010If a creature with annihilator is attacking a planeswalker, and the defending player chooses to sacrifice that planeswalker, the attacking creature continues to attack. It may be blocked. If it isn't blocked, it simply won't deal combat damage to anything.
- 1 July 2013Lethal damage and effects that say "destroy" won't cause a creature with indestructible to be put into the graveyard. However, a creature with indestructible can be put into the graveyard for a number of reasons. The most likely reasons are if it's sacrificed, if it's legendary and another legendary creature with the same name is controlled by the same player, or if its toughness is 0 or less.
- 7 December 2018Ulamog's ability triggers as you cast it, and that ability resolves before the spell itself. It resolves even if that spell is countered.