[ Machine / Synchro / Tuner / Effect ]1 Tuner + 1+ non-Tuner monsters
Once per turn: You can send 1 "Synchron" monster from your Deck to the GY, then activate 1 of these effects;
● Increase this card's Level by the Level of the sent monster.
● Reduce this card's Level by the Level of the sent monster.
During your opponent's Main Phase, you can (Quick Effect): Immediately after this effect resolves, Synchro Summon using this card you control. You can only Synchro Summon "Accel Synchron" once per turn.