Bard - Cantrip - D a n c i n g L ig h t s
Casting Time: 1 action
Range: 120 feet
Components: V, S, M (a bit o f phosphorus or wychwood,or a glowworm)
Duration: Concentration, up to 1 minute
You create up to four torch-sized lights within range, making them appear as torches, lanterns, or glowing orbs that hover in the air for the duration. You can also combine the four lights into one glowing vaguely humanoid form of Medium size. Whichever form you choose, each light sheds dim light in a 10-foot radius.
As a bonus action on your turn, you can move the lights up to 60 feet to a new spot within range. A light must be within 20 feet of another light created by this spell, and a light winks out if it exceeds the spell’s range.
My Comments: This is the best kind of cantrip in my mind, because it can be used very effectively outside of combat, or pre-combat. During pre-combat the loss of a full action isn't such a big deal and this spell could be very useful as a distraction. Plus, it's got a great range at a 120'!
I also notice that it doesn't specifically say you have to be able to see the target. As a DM I think I would house rule that you did, but if not then you could do a lot of fun things, like materialize the globs on the other sides of walls or right next to a creature hiding in bushes, possibly surprising them into jumping out of the bushes or something.
For a cantrip, it's a great spell.