Advanced format ruling
At One With the Sword
Card effect (current official text)Activate while the only monster you control is 1 face-up "X-Saber" monster. Equip this card to that monster. It gains 800 ATK. If it destroys your opponent's monster by battle, draw 1 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.