Prison Break

When Prison Break enters the battlefield, put three 1/1 colorless Eldrazi Scion creature tokens onto the battlefield. They have Sacrifice this creature: Add {1} to your mana pool.
At the beginning of each player's upkeep, put six 1/1 colorless Eldrazi Scion creature tokens onto the battlefield. They have Sacrifice this creature: Add {1} to your mana pool.