Here's a little something I came up with while I was playing around with command blocks this morning. :) I figured out how to make a magical particle trail for you. Simply input the following command into a command block, and put whatever particle you like! Click HERE for a list of all particles.

/particle (particleName) ~ ~1 ~ 1 1 1 1 10 @a

Hook the command block up to a high-speed comparator clock (not my video, just a helpful one I found).
Now you have your own custom trail!

Thanks for reading!
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Thanks for reading! :D