Advanced format ruling
Gadget Driver
Card effect (current official text)You can send this card from your hand to the Graveyard and select any number of face-up "Morphtronic" monsters you control. Change the battle position of the selected monster(s). This effect can be activated during either player's turn.
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.