Celerity

School: Chronomancy (Transmutation)
(Intended for use with a Chronomancer subclass such as the School of Temporal Magic)

You touch a willing creature and infuse a small amount of mist smoke into their timestream. Until the spell ends, the target gains a +2 bonus to AC, it has advantage on Dexterity saving throws, and it can use a bonus action to take the Dash, Disengage, Hide or Use an Object action.

When casting this spell multiple times, you can affect a number of creatures equal to your spellcasting ability modifier. When you cast this spell an additional time, the spell ends for the first creature targeted by this spell.

When the spell ends, the target can't take reactions until its next turn, as they readjust to normal time.