Advanced format ruling
Ancient Gear Engineer

Card effect (current official text)Negate any Trap effects that target this card, and if you do, destroy that Trap Card. If this card attacks, your opponent cannot activate any Spell/Trap Cards until the end of the Damage Step. At the end of the Damage Step, if this card attacked: Target 1 Spell/Trap Card your opponent controls; destroy that target.
Current rulings for this card are maintained by Konami.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Advanced forum — sourced change requests get reviewed.