Call Of A Great Old One

The spell caster must cast this spell with a great belief in a Great Old One. if the spell casters belief is not pure, the spell instantly kills him (in his physical and all other forms).

The spell caster draws a beam of astronomical power, piercing thru all realms the shout of the spell caters chosen Great Old Ones name. If the Great Old One decides decides not to ignore the beam, a bond is formed between the caster and the Great Old One. This bond can be used as an atonement.

Once this spell is acquired by the spell caster, he can cast it only once.

This spell cannot be received by typical ways (level ups, chests...). It must be received from an artifact/item/character/monster of great power.