Help with looking for cosmetic spell id

Hi, I've been doing some spellswapping with dbc editor, I'm looking for something cool to change Chain Lightning into.

Trying my luck here: anyone knows what's the multi coloured lightning channelled beam that Akama and his 2 spirit friends cast to open the door to Illidan?

Thanks!

https://i.ibb.co/zRWLjM7/watsdaspellid.png

edit: i'm also open to suggestions, I've considered legion lightning (lord jaraxxus) and lunatic gaze (yoggsaron)... any ideas pls PM ty!