I am a massive anime fan and thought hey i wan't to do a Rasengan that can be tracked and added to videos. After looking on blend-swap with no luck and then trying you-tube for a tutorial (also no luck) I gave up and did it myself. Also if you plan on animating it there is an empty in the center that moves the entire effect. Please send me links to the awesome stuff you guys do with it ;).
There is an animation preview here
If the link doesn't work try later it may still be processing. Also for you VFX artists out there if you have an effect you want to use this for you will either have to mess with the node set up or use keyframes to animate it.
Best of Luck ;)
here is the tutorial I recently mode for the rasengan