You only halve the ATK of the selected “Elemental Hero” when “Hero Heart” resolves. If you later equip the monster with “Axe of Despair” it will get the full +1000 ATK.
You only halve the ATK of the selected “Elemental Hero” when “Hero Heart” resolves. If you later equip the monster with “Axe of Despair” it will get the full +1000 ATK.