Ulamog, the Defiler [Modern Horizons 3] Demon Primarch While doing so

While doing so

Set: Fallout Type: Creature — Rat Mutant Rarity: Uncommon Cost: {1}{B}{B} Squad — Exile four cards from your graveyard

If that spell is countered this way

Set: Dark Beginning 2 Card type: Effect Monster Rarity: Ultra Rare Attack: 3500 Defense: 3000 This card cannot be Normal Summoned or Set

Set: Legendary Collection 4: Joey's World Card type: Normal Monster Rarity: Common Attack: 1100 Defense: 700 Yo

Ulamog, the Defiler [Modern Horizons 3] Demon Primarch While doing soSet: Modern Horizons 3 Type: Legendary Creature Eldrazi Rarity: Mythic Cost: {10} When you cast this spell, target opponent exiles half their library, rounded up. WardSacrifice two permanents. Ulamog, the Defiler enters the battlefield 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.