Advanced format ruling
Gadget Hauler
Card effect (current official text)Once per turn, you can send any number of "Morphtronic" monsters from your hand to the Graveyard to have this card gain 800 ATK for each.
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.