Does this need to be indexed (MUI)?

[X-Death]

If I use special effects that make a spiral swirl with polar offset after an ability is cast, would this need to be indexed? If so, how do I index groups of special effects like that with polar offset?

 

[chobibo]

If your using dummy units, you can use a group for every cast, if not, then you could try using the basic indexing technique, PurgeandFire has a tutorial about it, lemme look for the link okay?

EDIT:
[Here]

 

[Meticulous]

If you destroy the special effects right after they're created, no.