Demon Skull - Gauntlet homebrew

 You conjure the terrifying visage of a giant fanged skull 6 feet tall and 6 feet wide and send it in a direction you choose.  Despite being illusory, your mastery of evocation magic makes this spell a reality, and only affect hostile creatures. 

Each hostile creature in the line must make a Constitution saving throw.  A hostile creature takes 12d12 necrotic damage on a failed save, or half as much damage on a successful one.  This spell ignores line of sight and can hit hostile creatures either obstructed or behind total cover.

After an undisclosed amount of distance, the skull dissipates.