AHHHH I NEVER EVEN SAW THESE
NOR DID I REALLY KNOW YOU EVEN KNEW ABOUT THE WEAPON SHIFT
They all look super interesting--I have no idea which I'd pick, really. The fact that you pulled from GW2 Mesmers makes me giddy as hell, though, haha!
One of the first inspirations I drew from with them was this thing:

Though treating the blue-teal 'fire' as just a silhouette for his hand.
The Stargate Kara Kesh ones have the central-gem idea in a pretty neat way, that's a show I haven't thought about in ages.
Freakin'... Mr. Clean... xDDD
And RE:Ultima... yeah... Esper fashion is
weird xD