You make a simple gesture, indicating to an allied creature within range that they should perform an action and sending a telepathic message of 25 words or fewer. The target chooses either the Dash, Disengage, Dodge, Attack (single weapon attack only), or Cast a Spell (a cantrip with a casting time of one action) actions. The target uses their reaction to perform that action. You also take the same action as part of casting this spell.