Spawnsire of Ulamog

Spawnsire of Ulamog

Creature - Eldrazi | Power/Toughness: 7 / 11 (CMC 10)
Annihilator 1 (Whenever this creature attacks, defending player sacrifices a permanent.)
: Create two 0/1 colorless Eldrazi Spawn creature tokens. They have "Sacrifice this creature: Add ."
: Cast any number of Eldrazi spells from among cards you own outside the game without paying their mana costs.