Gem-Knight Topaz

Level 6 EARTH/Thunder Fusion Effect
1800 ATK / 1800 DEF

"Gem-Knight Tourmaline" + 1 "Gem-Knight" monster
Must first be Fusion Summoned with the above Fusion Material Monsters. This card can attack twice during each Battle Phase. When this card destroys a monster by battle and sends it to the Graveyard: Inflict damage to your opponent equal to the ATK of the destroyed monster in the Graveyard.

Rulings – Yugipedia

Printings:

Duel Terminal 5a: DT05-EN036 (Duel Terminal Ultra Parallel Rare) - 2011-05-29
Hidden Arsenal 5: Steelswarm Invasion: HA05-EN021 (Secret Rare) - 2011-12-01
Battles of Legend: Monster Mayhem: BLMM-EN138 (Ultra Rare) - 2025-08-28

Prices:

Cardmarket: 0.14 €
TCGplayer: $ 0.11