A magical interference prevents the target from contributing to any form of cooperative spellcasting. On a failed save, the target can't participate in any ritual unless they can cast the ritual alone, and they can't access any spells provided by a coven or similar cooperative ability.
Heightened (4th) Increase the duration to 1 hour.
Heightened (5th) Increase the duration to 1 day.
Traits
An action with this trait requires a degree of mental concentration and discipline.
A curse is an effect that places some long-term affliction on a creature. Curses are always magical and are typically the result of a spell or trap. Effects with this trait can be removed only by effects that specifically target curses.
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.