I like the yellow version, but not the others.

really cool idea

The auroral smoke probably needs some work, but the fact that it leaves the smoke back in moving taunts is such a good idea! Also, I would lower the frequency of when the smoke is left behind, to let slower taunts like Conga emit distinct clouds.

Looks fine to me. Maybe take away the little sparkles, as they don't really add anything to this except an additional bit of business, but the main aura bit looks pretty neat and works fine as a taunt effect.

Way too busy and way too eventful. It essentially hides the merc in some auroral smoke screen. Don't do this for an unusual taunt effect, it's too much.

i think that is just a bit too much

GOOD ME LIKE VERY

CRAZYYYY GOOOOOOOOOOOOOOOD!!!!!!!!!!!!!!!!!!!!