Thunderforce Attack — Ruling

Effetto 0

• This card does not target.
• This card cannot be activated during the Damage Step.
• When resolving this effect, you destroy all face-up monsters your opponent controls. If you activated this card during your Main Phase, you can also draw cards equal to the number of monsters destroyed by this effect and sent to your opponent's Graveyard. (These actions do not occur simultaneously.)
• If you apply the additional effect to draw cards, you can only attack with 1 monster for the rest of the turn.