Roll a D6 at the start of each friendly Magic phase. On a roll of 2-6, Tetto'Eko's calculations are correct and the cosmic event occurs; all friendly Wizards within 12" must re-roll power dice rolls of a 1 this phase. However, on a roll of 1, the Chaos Moon has corrupted Tetto'eko's calculations and all friendly Wizards within 12" casting a spell must re-roll any of the power dice that roll a 6 this phase.