Dark Hunter

Level 4 DARK/Fiend Effect Monster
1600 ATK / 400 DEF

This card's effect changes depending on the number of DARK monsters in your Graveyard. ● 1 or fewer: This card loses 400 ATK. ● 2 to 4: This card gains 400 ATK. ● 5 or more: You can send this card to the Graveyard to destroy all face-down monsters your opponent controls.

Rulings – Yugipedia

Printings:

The Duelist Genesis: TDGS-EN033 (Ultimate Rare) - 2008-09-02
The Duelist Genesis: TDGS-EN033 (Ultra Rare) - 2008-09-02

Prices:

Cardmarket: 0.57 €
TCGplayer: $ 0.49