Dark Crisis is a Booster Pack, which combines the Japanese sets, Power of the Guardian and Threat of the Dark Demon World. It is the ninth worldwide Booster Pack.
It has been released in the Yu-Gi-Oh! Trading Card Game (TCG) in English and in the Yu-Gi-Oh! Official Card Game (OCG) in Asian-English and Korean. The English TCG has two different prints, one with set numbers DCR-### and one with DCR-EN###, the second of which were available through Gladiator's Assault: Special Edition and Master Collection Volume 2.
In 2010, an Unlimited Edition North American version of the set (DCR-###) was reprinted again and released in Legendary Collection.
Dark Crisis introduces the archetypes "Guardian" and "Archfiend" to the TCG.
Highly sought-after cards include "Vampire Lord", "D.D. Warrior Lady", "Butterfly Dagger - Elma", and "Terrorking Archfiend".
In the English and Asian-English versions of this set, each pack contains 9 cards and each box contains 24 packs. In the Korean version, there are 5 cards per pack.
The set contains 106 cards, including: