You can target 1 face-up card you control; you cannot Special Summon from the Extra Deck for the rest of this turn, except Machine Synchro Monsters, also, destroy that card, and if you do, Special Summon 1 "Crystron" Tuner from your Deck. You can banish this card from your GY; Special Summon 1 "Crystron" monster from your hand. You can only use 1 "Crystron Prasiortle" effect per turn, and only once that turn.