1 Tuner + 1 or more non-Tuner monsters
Once per turn: You can send 1 Synchron monster from your Deck to the Graveyard, 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: Immediately after this effect resolves, Synchro Summon 1 Synchro Monster, using Material including this card you control (this is a Quick Effect). You can only Synchro Summon Accel Synchron(s) once per turn.