Venomous Fangs

Casting Time: 5 hours (5 phases of 1 hour when cast as a formula)

Formula Ability Checks: Intelligence with alchemist's supplies or poisoner's kit (DC 14), Wisdom (Medicine) (DC 14), Intelligence with alchemist's supplies OR Wisdom (Medicine) (DC 16).

Formula Backlash: One level of exhaustion.

Formula Failure: 3d10 poison damage and poisoned until finishing a long rest.

Duration: Instantaneous or 8 hours.

Details: With this Tcho-Tcho technique, you can cause a creature that you perform surgery upon during the casting time to grow a venom gland attached to one natural weapon it has, such as claws or fangs. This spell has no effect on creatures lacking natural weapons. The chosen natural weapon secrets venom once on each of the targets turns. A creature hit by an unarmed strike with this natural weapon must make a constitution saving throw. On a failed save, it takes 1d10 poison damage and is poisoned until the end of its next turn.

Remove curse, restoration or similar magic can remove the gland produced by venomous fangs, if the target is willing to have it removed.

You can cast this spell in one of two modes: temporary or lasting.

Temporary: When you cast this spell in temporary mode, it lasts 8 hours. When cast this way, the spell doesn't consume the material components.

Lasting: When you cast this spell in lasting mode, it is instantaneous, leaving the creature's body indefinitely modified thereafter. When cast this way, the spell consumes the material compnents.