Synchro Panic

Destroy this card during your 3rd Standby Phase after activation. Activate this card only if your face-up Synchro Monster(s) is destroyed by battle or an opponent's card effect by targeting 1 of them: Special Summon 1 Tuner and any number of non-Tuners from your GY, whose total Levels equal that monster's. The Special Summoned monsters cannot be destroyed by battle or card effects during this turn. Neither player can Synchro Summon.