Cimmerian

They are a clan that reside within the Dark Zone. Many of them are unable to survive sunlight. Meaning, they must live in the dark during the day and roam around Cray at night. They focus on binding cards from the top of the deck and gain effects and Power boosts from doing so.

Grade 0
Dark Flare, Xaphan (Critical) (Demon)

Gothic Exterminator (Critical) (Vampire)

Lycanthrope Whisperer (Succubus)

Shadow Hunter, Apex (Warbeast)

Twilight Witch, Natalie (Heal) (Human)

Undead Gunman (Stand) (Vampire)

Grade 1
Beauty of the Red Mist (Ghost)

Decaying Steed (Zombie)

Dusk Spirit Valkyrie (Human)

Servant of the Beast (Elf)

Shadow Priestess of the Netherworld (Human)

Temptress of Twin Knives (Vampire)

Grade 2
Agent of Vengeance (Angel)

Black Skull Psychopomp (Ghost)

Decaying Knight (Zombie)

Guardian of the Dark Horizon (Succubus)

Kanabō Warrior of the Never-ending Abyss (Giant)

Rotting Gargoyle (Zombie)

Scourge of the Sky, Ala (Demon)

Grade 3
Decaying Swordmaster (Zombie)

Lord of the Abandoned Estate, Vladimir (Vampire)

Shadow Pulse Dragon (Abyss Dragon)

Warrior of Black Haze, Erebus (Ghost)

Trivia

 * All of the pictures were found online.
 * Cimmerian means lack of light