Synchro Blast Wave is a Normal Spell Card.
Spell Cards are usually activated from the hand on your turn unless their type gives another timing window.
On the current TCG and OCG Forbidden & Limited lists tracked here, Synchro Blast Wave is Unlimited.
YGOPRODeck lists Synchro Blast Wave for these formats: Duel Links, Common Charity, Edison, TCG, OCG, Master Duel.
A listed print of Synchro Blast Wave appears in Duelist Pack Collection Tin 2010 (DPCT-ENY03) at Super Rare rarity.
Among markets shown on this page, the lowest listed snapshot for Synchro Blast Wave is about $0.06 on Cardmarket (prices change frequently).
