This Oil is alchemically created from a sample of aberrant flesh. If dripped on a weapon that is not an artifact, the weapon starts to mutate. Roll 1d3

1. Bludgoening
2. Piercing
3. Slashing

The weapon permanently mutates according to the damage type you rolled, growing tense flesh, toothy maws from which tentacles spring and flail and the blade itself becomes covered in serrated teeth. The weapon deals an additional 1d4 of the appropriate damage type. If the weapon is non magical, this damage is also not magical. If the weapon is magical, this damage is also magical. If the wielder rolls a 1 on its attack roll, this damage is dealt to the wielder.

Additionally, roll 1d100. On a 10 or lower, the weapon permanently fuses with the individual that applied the Oil, replacing the lower part of the arm with itself and becoming an extension of the wielder. If the creature doesn't have proficiency with the weapon, it gains proficiency with that weapon.