Reshef the Dark Being

Level 8 LIGHT/Fiend Ritual Effect Monster
2500 ATK / 1500 DEF

This card can only be Ritual Summoned with the Ritual Spell Card, "Final Ritual of the Ancients". Once per turn, by discarding 1 Spell Card from your hand, take control of 1 monster on your opponent's side of the field until the end of this turn.

Rulings – Yugipedia

Printings:

The Lost Millennium: TLM-EN033 (Ultimate Rare) - 2005-06-01
The Lost Millennium: TLM-EN033 (Ultra Rare) - 2005-06-01
Dark Revelation Volume 3: DR3-EN213 (Ultra Rare) - 2006-11-25

Prices:

Cardmarket: 4.44 €
TCGplayer: $ 4.00