Blue Streaks Effect.
You could also use a ribbon type particle for your trails:
answered Jun 11 '16 at 05:24 PM
thats literally a circle-esque texture on translucency that is being emitted hundreds if not thousands of times. Just follow a few cascade tutorials and you can make something like this with your eyes closed.
https://www.youtube.com/watch?v=yLpZZcPjiPo (also check suggested youtube vids, comes with more particle effects)
answered Jun 11 '16 at 09:14 AM
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