Advanced format ruling
Kuribon
Card effect (current official text)During damage calculation, if this card is attacked by your opponent's monster: You can activate this effect; you take no battle damage from that battle, your opponent gains LP equal to the attacking monster's ATK, also you return this card to your hand.
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.