Input
Output

Edison-Accurate PSCT:
① Negate any Trap effect that targets this card, and if you do, destroy that Trap Card.
② If this card attacks, your opponent cannot activate any Spell/Trap cards until the end of the Damage Step.
③ At the end of the Damage Step, if this card attacked: Target 1 Spell/Trap your opponent controls; destroy that target.
Card Information:
This card has an effect that activates in Substep 7 of the Damage Step.
1500 ATK / 1500 DEF | Machine / Effect | EARTH | LV5
Ancient Gear Engineer is Unlimited in Edison Format
Edison Rulings:
About the ① effect:
● It is a Continuous Effect, it cannot apply while this card is face-down (e.g. if "Book of Moon" is chained to the Trap)
About the ② effect:
● It is a Continuous Effect, it applies from attack declaration until the Damage Step ends.
● Spell/Trap effects may still be activated (e.g. the effect of an already activated "Ultimate Offerring"/"Royal Oppression" or the GY effect of "Skill Successor"), the Continuous Effect of Traps will also continue to apply.
● After the Damage Step ends, it returns to the Battle Step. Then, the turn player retains priority to declare an attack, there is not a window for the opponent to activate a Spell/Trap inbetween two consecutive "Ancient Gear" attacks.
● If this card is destroyed by battle, this effect stops applying at the start of substep 6 of the Damage Step.
About the ③ effect:
● This mandatory Trigger Effect starts a chain and targets a Spell/Trap your opponent controls.
● This card must remain face-up on the field to activate this effect, it will not activate if this card is destroyed by battle.
