You implant a message within an object in range a message that is uttered when a trigger condition is met. Choose an object that you can see and that isn't being worn or carried by another creature. Then speak the message which must be 25 words or less though it can be delivered over as long as 10 minutes. Finally determine the circumstance that will trigger the spell to deliver your message.
When that circumstance occurs a magical mouth appears on the object and recites the message in your voice and at the same volume you spoke. If the object you chose has a mouth or something that looks like a mouth (for example the mouth of a statue) the magical mouth appears there so that words appear to come from the object's mouth. When you cast this spell you can have the spell end after it delivers its message or it can remain and repeats its message whenever the trigger occurs.
The triggering circumstance can be as general or as detailed as you like though it must be based on visual or audible conditions that occur within
30 feet of the object. For example you could instruct the mouth to speak when any creature moves within 30 feet of the object or when a silver bell rings within 30 feet of it.
You create a 20-foot-radius sphere of fog centered on a point within range. The sphere spreads around corners and its area is heavily obscured. It lasts for the duration or until a wind of moderate or greater speed (at least 10 miles per hour) disperses it.
At Higher Levels: When you cast this spell using a spell slot of 2nd level or higher the radius of the fog increases by 20 feet for each slot level above 1st.
The next time you hit a creature with a ranged weapon attack before the spell ends this spell creates a rain of thorns that sprouts from your ranged weapon or ammunition. In addition to the normal effect of the attack the target of the attack and each creature within 5 feet of it must make a Dexterity saving throw. A creature takes 1d10 piercing damage on a failed save or half as much damage on a successful one.
At Higher Levels: If you cast this spell using a spell slot of 2nd level or higher the damage increases by 1d10 for each slot level above 1st (to a maximum of 6d10).