1 Tuner Synchro Monster + 1 or more non-Tuner Synchro Monsters Must be Synchro Summoned, and cannot be Special Summoned by other ways. Once per turn, during either player's turn: You can banish 1 Synchro Monster from your Graveyard; this card is unaffected by other cards' effects for the rest of this turn. If this card in its owner's possession is destroyed by an opponent's card (by battle or card effect): You can target 1 of your banished Dragon-Type Synchro Monsters; Special Summon it.
OCG Rulings: "Banishing 1 Synchro Monster from your Graveyard is a cost to activate this effect. It cannot be activated during the Damage Step."
Accel synchro in duel links:
Until there is a new Duel Links Meta video that shows how awesome it is that is.
Usually gaming companies like Konami pay millions in advertisement. But DLM do it for free, plus some cards are so notoriously unbalanced that not balancing the game ends up being advertisement for it.
189 IQ move.
Is there a level 2 synchro monster in the game?
I currently don't have access to my device to check this out in the card studio.