Homebrew Demon Species Details
A monster has risen from the underworld, they find their way into this new world. They have been banished from the underworld, so they can't survive there unless they are in ghost form. They don't know the laws of this world.
Demon Traits
Monsters. They are evil.Ghost Form
Three times per short rest, the player can activate this for 1d10 rounds, making them invincible to weapon attacks and letting them go through walls.
Extra spells
The player gets different spells based on their levels.