Advanced format ruling
White Night Dragon
Card effect (current official text)During either player's turn, when a Spell/Trap Card that targets this card is activated: Negate the activation, and if you do, destroy it. When another face-up monster you control is targeted for an attack: You can send 1 Spell/Trap Card you control to the Graveyard; change the attack target to this card.
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.