It took one person, actually. I did all of the particle effects. Sophie came up with the concept, and fishska did the promotional material.

it really took three mf's to recolor burning flames?

VALVE PLS PLS PLS

I love it, purple trailing effect doesnt exist in tf2, i love it, i love you, i love tf2

Really basic but i'm really sick of all these gimmicky unusual effects with massive sprites and stuff, so i am a big fan of this

Yes it does trail, the video shows that it does trail behind. It is a bit more noticable in game though

does it trail like the burning/scorching flames?

Well, in other words but yeah, that's basically it. I'm sorry you took it so bad, it was honest feedback.

"it's purple & has tp_sparkle so its literally the same effect but boring"

Honestly, lazy concept, feels like I've seen this effect twenty+ times already before. Very similar to the "chromatica" and "ether trail" unusual effects, except more boring. I appreciate the effort that went into it and, quality wise, it's pretty good, but I really don't believe it's needed in TF2 since it's pretty bland and almost a carbon copy of the aforementioned effects.