Advanced format ruling
Trap of Board Eraser
Card effect (current official text)You can only activate this card when an effect that inflicts damage to your Life Points is activated (except Battle Damage). Negate the Effect Damage you receive and your opponent then selects 1 card from his/her hand and discards it.
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.