Your search for "synchronized strike 370" revealed the following:
Synchronized Strike (AKH) from Amonkhet, available at 401 Games Canada. Rarity: Uncommon Finish: Normal Artist: David Palumbo Card Text:Untap up to two target creatures. They each get +2/+2 until end of turn.
Rokket Synchron - SAST-EN007 - Rare - Unlimited from Savage Strike Unlimited, available at 401 Games Canada. Rarity: Rare Card Text:When this card is Normal Summoned: You can target 1 Level 5 or higher DARK Dragon monster in your GY;...