Des Volstgalph

Level 6 EARTH/Dragon Effect
2200 ATK / 1700 DEF

If this card destroys an opponent's monster by battle and sends it to the Graveyard: Inflict 500 damage to your opponent. Each time a Normal or Quick-Play Spell Card resolves, this card gains 200 ATK until the end of this turn.

Rulings – Yugipedia

Printings:

Shonen Jump Championship 2005 Prize Card: SJC-EN002 (Ultra Rare) - 2005-08-20
Pharaoh Tour 2005 promotional cards: PT1-EN002 (Ultra Rare) - 2005-12-17
Gold Series 2009: GLD2-EN002 (Gold Rare) - 2009-04-21
Premium Gold: PGLD-EN061 (Gold Rare) - 2014-03-28
Space-Time Showdown Power-Up Pack: YS14-ENA02 (Common) - 2014-07-10

Prices:

Cardmarket: 0.19 €
TCGplayer: $ 0.34