You invest an amount of your potential magical energy in the environment around you, allowing you to draw on it at a moment's notice through timing, rhythm and movement.
- You gain an amount of invested energy equal to your proficiency bonus. You may use this energy to cast a spell as a reaction when a creature you perceive uses movement, begins an action, is targeted by an effect, sustains damage or ends their turn. You lose an amount of invested energy equal to the level of the spell. Catrips require one expended slot. You gain all expended uses on a long rest.
- All spells cast this way acquire a somatic component if they do not have one.
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