Acid Blood Curse

This Spell Level is Level 6

* Casting time: 8 hours every 10 days for 50 days (8 hour phases when cast as a formula)

Formula Ability Checks: Intelligence with Alchemists Supplies (DC 17), Wisdom (Medicine) (DC 17), Intelligence with Alchemists Supplies OR Wisdom (Medicine) (DC 18).

Formula Backlash: Two Levels of exhaustion.

Formula Failure: 6d4 acid damage.

Description:

You protect a humanoid creature you touch from acid using Tcho-Tcho alchemical techniques. You also turn the targets blood and bodily fluids highly acidic, such that they damage and corrode any material they drip upon. The target gains resistance to acid damage. The subject's highly acidic blood damages weapons that penetrate the skin. Creatures that deal piercing or slashing damage to the subject with melee attacks take 1d6 acid damage from blood splatter. Slashing and piercing weapons also corrode unless they are magical. After dealing damage, a non-magical weapon takes a permanent and cumulative -1 penalty to damage rolls; when this penalty reaches -5 the weapon is destroyed.

While these advantages are significant, the disadvantages are why it is called a curse. The victim's other body fluids are also acidic, although not to the same degree as the victim's blood. Any sweat will, over time, tatter and ruin all worn clothing, and any saliva will eventually tarnish and destroy eating utensils. This effect also makes it hard for the victim to have any intimate relationships except with another subject of the acid blood curse.

Any armour the victim wears degrades over time. At the end of every 10 days of regular use, the armour's AC is permanently reduced by 1 unless the armour is magical. When this reduces the armour's AC to 10 it is destroyed.

If the subject takes piercing or slashing damage, any worn non-magical armour's AC is reduced by 1 immediately. The Tcho-Tcho typically bestow the curse on operatives who do not normally wear armour, and usually on Okkators whose missions don't involve infiltration because the curse prevents them from being able to interact easily with society.

You need not follow any of the spells restrictions of spellcasting during the breaks in this spell's casting time. If you cast the spell normally, you only expend the spell slot (Spell Slot Level 6) when you finish the casting time. (You can use that spell slot normally in the interim.)