Necrotic Cyst

School: Necromancy
Sub-School: None
Descriptor: Necrotic
Ritual: No
Level: Arcane & Divine 2nd
Components: Material, Somatic & Verbal
Casting Time: Standard
Range: Touch
Effect/Target: Single Living Creature
Duration: Permanent, see text
Saving Throw: Constitution - Negate
Perform a spell Attack against your target.
On a successful hit, the target must make a Constitution saving throw or become victim to a necrotic cyst, which appears wherever you touched them, but deeply enough to not be immediately obvious.
While inflicted by a necrotic cyst, the target has Disadvantage on saving throws against Necromancy spells and effects.
Additionally, when struck by an Undead creature using a Natural Weapon, they take an additional 1d6 Necrotic damage.
Finally, select spells require the presence of a necrotic cyst within the target.
A DC 15 Medicine check can identify the presence of a necrotic cyst.
A necrotic cyst can be removed by a DC 20 Medicine check, which takes 1 Hour to complete.
However, on a failed Medicine check, the target instantly dies.
Material Component: Grim Netheryte with a value of 10g (Reusable), and a Mother Cyst inside you