Prometheus, King of the Shadows

Level 4 DARK/Fiend Effect
1200 ATK / 800 DEF

If this card is Normal Summoned: Banish 1 or more DARK monsters from your GY, and if you do, this card gains 400 ATK for each, until the end of this turn.

Rulings – Yugipedia

Printings:

Force of the Breaker: FOTB-EN063 (Secret Rare) - 2007-05-16
Gold Series: GLD1-EN027 (Gold Rare) - 2008-04-02
Gold Series 4: Pyramids Edition: GLD4-EN020 (Common) - 2011-06-24
Destiny Soldiers: DESO-EN047 (Super Rare) - 2016-11-17
Structure Deck: Lair of Darkness: SR06-EN006 (Common) - 2018-04-19
Speed Duel Starter Decks: Twisted Nightmares: SS05-ENA15 (Common) - 2020-05-15

Prices:

Cardmarket: 0.08 €
TCGplayer: $ 0.11