Synchronized Message

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

You speak a short message of twenty-five words or less while synchronizing timelines with a creature with which you are familiar. The creature speaks the message outloud, recognizes you as the sender if it knows you, and can answer in a like manner immediately, causing you to speak the reply outloud. The spell fails if the target has an Intelligence scores less than 1, or does not have a mouth.

You can send the message across any distance and even to other planes of existence.