Nightmare Crystal

"I can take you anywhere... Especially to places you don't want to go."

-Antikeeper, toying with a CELL general before fighting him.

The Nightmare crystal allows minor bending of reality in close proximity to the user, sometimes causing people to go insane. Most weapons or armor used are nightmarish, including hooks and scythes and intimidating armor. It also causes hallucinations in its enemies' minds. It also has the ability to camouflage its user into the shadows, allowing terrifying sneak attacks.

Its God-Tier entity is Antikeeper.

It has True Absorption powers.