Gemini Imps

Level 4 DARK/Fiend Effect Monster
1000 ATK / 1000 DEF

During either player's turn, when your opponent activates a Spell Card, Trap Card, or monster effect that could make you discard when it resolves: You can send this card from your hand to the Graveyard; negate the activation, and if you do, destroy it. Then draw 1 card.

Rulings – Yugipedia

Printings:

Premium Pack (TCG): PP01-EN005 (Secret Rare) - 2007-07-26
Turbo Pack: Booster Eight: TU08-EN014 (Common) - 2012-06-01

Prices:

Cardmarket: 0.29 €
TCGplayer: $ 0.46