Cobraman Sakuzy

You can flip this card into face-down Defense Position once per turn during your Main Phase. When this card is flipped face-up, look at all Set Spell and Trap Cards on your opponent's side of the field and then return them to their original position.

From Yu-Gi-Oh! Trading Card Game.

Open the interactive version on https://mythscribe.cloud/app/tcg/cards/cms6nn7o01442sb1ivl3pxmpp.