Mathmech Subtraction — Ruling

Effetto 0

• This effect is an Ignition Effect, which can be activated in the Hand.
• This effect targets 1 face-up monster in either your Monster Zone or your opponent's Monster Zone.
• This card's effect finishes resolving by Special Summoning it and decreasing the targeted monster's ATK. (The effects that prevent this card from attacking and prevent you from Special Summoning monsters from the Extra Deck other than Cyberse monsters this turn are applied immediately once this effect resolves.)
• Special Summoning this card from your hand and decreasing the targeted monster's ATK by 1000 happen simultaneously.
• This card's effect is an Ignition Effect that activates in the hand.