Lore
A powerful ghostly creature, its body is built for one purpose... evil 
Abilities
The Demon is an Origin with the following abilities:
Self Transfiguration [Primary]
A demon has the innate ability to transfigure its own body to temporarily increase its physical capabilities, but beware whilst using it, because it rapidly drains ectoplasm.
Stained
A demon is stained in the blood of its victims.
Extra Health
A demon's body is exceptionally well built, allowing it to take a bit more punishment than usual before perishing.
Ectoplasm
Ectoplasm is the life essence of any ghostly creature, without it, they will slowly start to die.
Luminophobia
Light gradually decreases the amount of ectoplasm that you have, which causes you to take damage if it gets too low.
Translucent Skin
Your skin is slightly translucent, allowing others to see through you.
Phasing [Secondary]
Ghosts have the ability to phase through blocks, this is because they are incorporeal. toggleable.
Undead
Spirits are undead, meaning that health and poison potion effects are swapped and cannot drown.
Night Vision
A ghost likes the darkness, so they're able to see in the dark.