If a 'PSYFrame' monster(s) is Special Summoned to your side of the field, you can: Immediately after this effect resolves, Synchro Summon 1 Synchro Monster, using only 'PSYFrame' monsters you control. At the start of the Damage Step, if a 'PSYFrame' monster you control battles an opponent's monster: You can discard 1 'PSYFrame' monster; that monster you control gains ATK equal to the discarded monster's ATK until the end of this turn.