Battle of Sleeping Spirits — Ruling

Effetto 1

• About this card's ① st effect:
• You cannot activate it during the Damage Step.
• It can be activated if at least one player's Graveyard has a monster that was destroyed by battle this turn.
• This effect's resolution concludes with monster(s) being Special Summoned. (If an Elemental HERO Neos was Special Summoned, and that Elemental HERO Neos later battles an opponent's monster, its ATK will be doubled immediately upon entering the Damage Step.)