![Ulamog, the Defiler (15) [Prerelease Cards]](http://alwaysgames.ca/cdn/shop/files/554197_in_1000x1000_cfe4c287-4cdb-426c-a6b2-c44c61e01f68.jpg?v=1771635882&width=716)
![Ulamog, the Defiler (15) [Prerelease Cards]](http://alwaysgames.ca/cdn/shop/files/554197_in_1000x1000_cfe4c287-4cdb-426c-a6b2-c44c61e01f68_1024x.jpg?v=1771635882)
Description
| Set: | Prerelease Cards |
| Type: | Legendary Creature — Eldrazi |
| Rarity: | mythic |
| Cost: | {10} |
When you cast this spell, target opponent exiles the top half of their library, rounded up.
Ward—Sacrifice two permanents.
Ulamog enters with a number of +1/+1 counters on it equal to the greatest mana value among cards in exile.
Ulamog has annihilator X, where X is the number of +1/+1 counters on it.