Advanced format ruling
Combination Attack
Card effect (current official text)During a Battle Phase, you can use this effect on 1 monster that has attacked this turn and is equipped with a Union Monster. Change the Union Monster back to a monster in face-up Attack or Defense Position. Also, the monster that was equipped with the Union Monster may attack again this 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.