Advanced format ruling
Skill Drain
Card effect (current official text)Activate by paying 1000 LP. Negate the effects of all face-up monsters while they are face-up on the field (but their effects can still be activated).
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.