Crystron Quan [RA04-EN021] Quarter Century Secret Rare

Set: Quarter Century Stampede Card type: Tuner/Effect Monster Rarity: Quarter Century Secret Rare During your opponent's Main Phase or Battle Phase: You can Special Summon 1 non-Tuner monster from your hand, but it has its effects negated (if any), and if you do, immediately after this effect resolves, Synchro Summon 1 Machine-Type Synchro Monster using only that monster and this card (this is a Quick Effect). You can only use this effect of "Crystron Quan" once per turn.