Advanced format ruling
Rainbow Veil
Card effect (current official text)If the equipped monster battles an opponent's monster, while that monster is on the field its effect(s) is negated during the Battle Phase only.
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.