Red-Eyes Soul

Level 7 DARK/Dragon Effect
900 ATK / 2000 DEF

This card's name becomes "Red-Eyes Black Dragon" while on the field or in the GY. If your opponent Special Summons a monster(s) (except during the Damage Step): You can send this card from your hand or field to the GY; Special Summon 1 "Red-Eyes" monster from your hand or Deck, except "Red-Eyes Soul". You can only use this effect of "Red-Eyes Soul" once per turn. (Quick Effect): You can target 1 "Red-Eyes Black Dragon" you control; inflict damage to your opponent equal to that monster's original ATK. You can only use this effect of "Red-Eyes Soul" once per Duel.

Rulings – Yugipedia

Printings:

Maze of Memories: MAZE-EN012 (Rare) - 2023-03-09
25th Anniversary Tin: Dueling Mirrors: MP24-EN260 (Ultra Rare) - 2024-09-19

Prices:

Cardmarket: 0.19 €
TCGplayer: $ 0.40