You attempt to force a creature into a constant mental re-experience of time for a short period. The creature must make an Intelligence saving throw or be stuck in a personal time loop.
If the target fails, they can only perform actions, bonus actions, reactions, legendary actions, and movement that they had performed on their previous turn, with any unspent actions being nullified. For example, if you cast the spell on a target and they had previously only taken a single attack action and moved 15 feet without using any reactions, bonus actions, or legendary actions, then if that target fails their saving throw they are limited to only a single attack and 15 feet of movement on subsequent turns until the spell ends.
The spell lasts for 1 minute and at the end of each of its turns, the target can make another Intelligence saving throw. On a success, the spell ends on the target.
* - (A small piece of Blue Ice as the center stone of a ring)
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