Third Configuration - Fossilization

Third Configuration: Fossilization: A twin headed spear shaped to look like the pincers of a crab. When a creature is struck by Chastiefol in this configuration, it deals 1d6 instead of 2d8 piercing damage, but forces a creature to make a DC 16 constitution saving throw. On a failure, the target is petrified for 1d4 hours. The creature can repeat the save at the end of its turns, breaking the curse on a success. It can also be broken with a lesser resotration spell. While petrified, the creature has an AC of 20, resistance to non-magical bludgeoning, slashing, and piercing damage, and does not benefit from healing spells or features. The spear then reverts to its first configuration.