Barnacles, coral, and other rough aquatic creatures grow on the target's body, getting in between their joints and stiffening their movement. This impedes the target's movement depending on the result of its saving throw.
Critical Success The target is unaffected.
Success The target is Clumsy 1. The target can Interact to scrape the coral growths from its body, decreasing the clumsy condition to 0 and ending the spell.
Failure The target is Clumsy 2. Each round at the beginning of its turn, the target becomes clumsy 1 or increases its clumsy condition by 1, to a maximum of 4. The target can Interact to scrape the coral growths from its body, decreasing the clumsy condition to 0 and ending the spell. If the target's clumsy condition caused by coral scourge reaches 4, the growths spread to cover the target's entire body, and the target becomes Paralyzed.
Critical Failure As failure, but when the target Interacts to scrape the coral growths from its body, it reduces its clumsy condition by 1, instead of decreasing it to 0, and decreasing the clumsy condition to 0 doesn't end the spell.
Traits
An action with this trait requires a degree of mental concentration and discipline.
An ability with this trait can take a character completely out of the fight or even kill them, and it's harder to use on a more powerful character. If a spell has the incapacitation trait, any creature of more than twice the spell's rank treats the result of their check to prevent being incapacitated by the spell as one degree of success better, or the result of any check the spellcaster made to incapacitate them as one degree of success worse. If any other effect has the incapacitation trait, a creature of higher level than the item, creature, or hazard generating the effect gains the same benefits.
You must physically manipulate an item or make gestures to use an action with this trait. Creatures without a suitable appendage can't perform actions with this trait. Manipulate actions often trigger reactions.
Effects with the water trait either manipulate or conjure water. Those that manipulate water have no effect in an area without water. Creatures with this trait consist primarily of water or have a connection to magical water.