Explosive Urchin

Activate only when your opponent activates a Trap Card. During your Standby Phase: Inflict 1000 damage to your opponent. Your opponent must control a face-up Trap Card for you to activate and resolve this effect. During your 3rd End Phase after activation, send this card to the Graveyard.

From Yu-Gi-Oh! Trading Card Game.

Open the interactive version on https://mythscribe.cloud/app/tcg/cards/cms6nokqu2aqwsb1ikwjedg32.