Spawnsire of Ulamog [Rise of the Eldrazi] Journey into Nyx {1}: Target noncreature artifact becomes

{1}: Target noncreature artifact becomes an artifact creature with power and toughness each equal to its mana value until end of turn

they have indestructible

Then exile the top card of your library

"What's the worst that can happen

counter Temporal Extortion

Spawnsire of Ulamog [Rise of the Eldrazi] Journey into Nyx {1}: Target noncreature artifact becomesSet: Rise of the Eldrazi Type: Creature Eldrazi Rarity: Rare Cost: {10} Annihilator 1 (Whenever this creature attacks, defending player sacrifices a permanent.) {4}: Create two 0 1 colorless Eldrazi Spawn creature tokens. They have "Sacrifice this creature: Add {C}." {20}: Cast any number of Eldrazi spells from among cards you own outside the game without paying their mana costs.