I am a DM who is planning to have the party finally face off against a criminal mastermind whose signature spell is Modify Memory. However, the party rogue is in possession of a Ring of Free Action.
One of the effects of the Ring of Free Action is to make it impossible for magic to reduce your speed:
While you wear this ring, difficult terrain doesn't cost you extra movement. In addition, magic can neither reduce your speed nor cause you to be paralyzed or restrained.
Does the Ring of Free Action provide immunity to the incapacitated condition if it was caused by magic?