Upon whispering an incantation of yore a dark raw power in your blood is released creating a molten ash type smoke cloud imitating around you. Any creature within 10ft of you must make a Constitution saving throw. On a fail, the creature is considered blinded. On the end of a blinded creature's turn, it can make a Consitution saving throw. On a success, the creature is no longer blinded but can only see up to 10ft. Creatures are no longer blinded if they move out of the smoke cloud, succeed the saving throw, have blind vision, or if the spell ends. In addition the smoke moves with the caster, however, the caster's speed is halved and the caster can only see up to 15ft. When casting the spell the spellcaster may choose one of the different types of smoke listed. (A creature that's any size larger then the caster or if the creature does not need air to live is immune to the spell)
Thick Smoke: A thick dark cloud of smoke emanates from you. Any creature within 10ft of you must make a Consitution saving throw. On a fail, the air is pushed from the effected creature's lungs and the creature begins to suffocate. If the creature ends its next turn within the smoke they must make a Constitution saving throw. On a fail, the creature suffers from suffocation until the spell ends.
Molten Smoke: A firey blast of smoke, ash, and embers explodes around you. Any creature within 10ft of you must make a Dexterity saving throw. On a fail, molten ash fills the air and deals 8d6 fire damage, or half as much on a success. However, if any creature ends its turn within the cloud of smoke they take an additional 1d6 fire damage
Frightful Vapor: A small shimmering cloud radiates from you. Any creature within 10ft of you that can also see you must make a Wisdom saving throw. On a fail, the creature is frightened of the caster. On the end of the creature's turn, it can make a Wisdom saving throw. On a success, the creature is no longer frightened of the caster and is immune to this effect for 24 hours. (This option ignores the blinding effects of the spell)
Rotting Ash: A dark cloud of heavy black ash emerges from your skin. Any creature within 10ft of you must make a Strength saving throw. On a fail, the creature's speed is halved and must spend its actions keeping itself from falling. On the end of the creature's turn, it can make a Strength saving throw. On a success, the creature's speed is returned to normal and no longer has to use its actions to keep themselves standing. If a creature attempts to leave the cloud they must make a Constitution saving throw. On a fail, the creature suffers 4d8 necrotic damage, or half as much on a success. In addition, if any creature that failed the strength saving throw dies inside the ash cloud the caster gains 1 Hit Point up until the casters Hit-Point Maximum.