Spell: Caster's Imposition

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.

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Heightened (4th) Increase the duration to 1 hour.

Heightened (5th) Increase the duration to 1 day.