|Revised Romanization||Hwan-yeong-ui Eodum|
|Part of series||Core Booster|
|Number of cards||
|Cover card||Yubel - The Ultimate Nightmare|
|Yugioh-Card database ID|
|Sneak Peek||Phantom Darkness Sneak Peek Participation Card|
|2-pack set||Phantom Darkness 2-Pack Set|
|Special Edition||Phantom Darkness: Special Edition|
Phantom Darkness is a Core Booster in the Yu-Gi-Oh! Official Card Game (OCG) and Yu-Gi-Oh! Trading Card Game (TCG). It is the seventh Core Booster of Series 5. It follows Gladiator's Assault and was followed by Light of Destruction.
The North American Sneak Peeks for this set took place from January 26–27, 2008.
Packs of the TCG set were also printed in the Phantom Darkness: Special Edition.
In October 30, 2019, the set was re-released in South Korea in Korean, as part of a reprint season including some other old packs. It was reprinted as originally released; in its original box style.
- Includes cards used by Aster Phoenix, Axel Brodie, Brron, Mad King of Dark World, Jaden Yuki, Jesse Anderson, The Supreme King, Yubel, and Zane Truesdale.
- Includes members and/or support for the "Archfiend", "Crystal Beast", "Dark World", "Destiny HERO", "Elemental HERO", "Gladiator Beast", "Neo-Spacian", "Neos", "Six Samurai", and "Volcanic" archetypes, as well as the Effigy, Greed, Konami Arcade Games, and Spiritual Art series.
- Introduces the Dark counterpart and Yubel series to the OCG/TCG.
- Introduces the first support for the "Ultimate Crystal" archetype to the OCG/TCG.
In the Japanese version there are 5 cards per pack and 30 packs per box.
The OCG set includes 80 cards. This is comprised of:
- 1 Holographic Rare (Also available as Ultimate and Ultra Rare)
- 5 Ultimate Rare
- 5 Ultra Rare (Also available as Ultimate Rare)
- 9 Super Rare
- 18 Rare
- 48 Common
In the TCG there are 9 cards per pack and 24 packs per box. This is comprised of:
- 1 Ghost Rare
- 10 Secret Rares
- 10 Ultimate Rare
- 10 Ultra Rares (Also available as Ultimate Rare)
- 12 Super Rares
- 20 Rares
- 48 Commons
- card09.com [OCG] 환영의어둠