Advanced format ruling
Urgent Tuning
Card effect (current official text)During the Battle Phase: Immediately after this effect resolves, Synchro Summon 1 Synchro Monster using monsters you control.
Current rulings for this card are maintained by Konami.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Advanced forum — sourced change requests get reviewed.