SFS Standard Shadow Prison [two-actions] Focus 6

Range 120 feet
Targets 1 creature
Defense Will

You cause memories of the target's resentment, regret, and other negative feelings to engorge its shadow until it grows large enough to swallow them whole. The target attempts a Will saving throw. The target is then immune to this spell for 1 minute.
Critical SuccessThe target is unaffected.
SuccessThe target resists the spell before it's completely swallowed up, but shadowy tendrils cling to it, making the target slowed 1 for 1 round.
FailureThe target is swallowed by its own shadow until the beginning of your next turn. The target is invisible and paralyzed, cannot experience or interact with the outside world, and cannot be targeted by any attacks or other effects.
Critical FailureAs failure, except the target is swallowed for 1 minute.