Seething Eyebane

1st level Corrupt transmutation spell.
Casting time 1 action.
Touch range.
Components V, S.
Duration Instantaneous.

Book of Vile Darkness

Any spellcaster that prepares spells can learn these spells. Each spell list has an alignment attached to it. If a creature of a different alignment casts one of these powerful spells, their alignment shifts towards the alignment of the spell by one step. Each spell has a corruption cost that is paid when the duration of the spell ends or according to the spell’s description. If the cost is ability damage, it is restored when the caster finishes a long rest. If the cost is ability drain, it does not recover until the creature receives attention from a Greater Restoration spell.

One creature that you touch must make a CON save. On a failed save, the creature’s eyes explode into a burst of acid that deals 1d6 acid damage to those within within 5 ft. of the creature (DEX save negates). The affected creature becomes permanently blinded and takes 1d6 acid damage themselves. When this spell is cast with a spell slot 2nd or higher, the damage to the main target increases by 1d6 for each spell slot level above 1st.

Corruption Cost: 1d6 CON damage