Tengu 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).
Rulings
- This only negates the effects of monsters while they remain face-up on the field. If a monster activates its effect on the field, but isn't face-up on the field when that effect resolves (EG, Lonefire Blossom tributing itself), that effect is not negated.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Tengu forum — sourced change requests get reviewed.