Ulamog, the Defiler (Borderless) [MH3 - 383] Super Rare put that many loyalty counters

put that many loyalty counters on The Aetherspark

you may add B to your mana pool (in addition to the mana the land produces)

or Serpent spell from your hand

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Ulamog, the Defiler (Borderless) [MH3 - 383] Super Rare put that many loyalty countersRarity: M #: 383 Creature Type or Sub Type: Legendary Creature Eldrazi P: 7 T: 7 Rules Text Contains: 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.