Rapture of Rupture

7th level Corrupt transmutation spell.
Casting time 1 action.
Touch range.
Components V, S.
Duration instantaneous.
Book of Vile Darkness

With this spell, the caster’s touch deals grievous wounds to multiple targets. After the spell is cast, the caster can touch up to ten living creatures (up to one target each round). The same creature cannot be affected twice by the same instance of this spell. Creatures that are touched in this way must make a CON saving throw. On a failed save, the creature takes 6d6 damage and is stunned for 1 round. A successful CON save halves the damage and negates the stun. Creatures that fail their save take 1d6 damage each round until they receive magical healing or someone succeeds at a DC 20 Medicine check. If a subject takes 6 damage from this spell in a single round, that creature becomes stunned for 1 round.

Corruption Cost: 1 STR damage per target touched

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.