Toxic upgrade is useless

I make use of the Toxic Upgrade on all of my toxic variant characters because it does appreciably extend the range at which you can do damage to your opponents just by being nearby and while you're not likely to vanquish anyone simply because of your Toxic Aura that constant low amount of damage to everything around you does add up and does help.

Toxic range is worth it. Lemme give you a small example :o

As Toxic Brainz I have on more than one occasion just simply walked by a pillar, building, fence, and even a random car, gotten vanquishes on players who just escaped someone else and tried regenerating their health. I won't even know they're there and the aura will defeat them. You hear the funny "Doing damage" noise a couple of times then suddenly that satisfying ding!

As Toxic Brainz I'm also prone to getting ambushed... while not entirely helpful in every situation, seeing one of those green numbers pop up on my screen will actually alert me to someone who is hunting me and trying to sneak up to get those high damage close range headshots. Most so if they're hiding behind the wall I'm running on the opposite side of!

... Of course, as Toxic Brainz, I'm usually flying around at the speed of sound to kamikaze on a group of plants with Turbo Twisters haha :P That toxic spread works during that too. Not so much for vanquishes though.

I feel as though the aura should apply the 6 total damage instead of wearing off when you get out of range.

Opinions among high level players seem to differ on this topic.  It varies by character.  I think the upgrades for Toxic Citron are particularly useful as they affect his primary weapon damage quite a bit.

Toxic upgrade just make the aura damage take 1 more damage. It doesn't seem to increase range. I don't like it so I don't use it. It makes it easier to pick other upgrades on those characters with it.

Toxic Brainz, Park Ranger, Toxic Citron, these are all people who get a Toxic upgrade for me. So I guess WWWWWWWWWWWWWWWWWWWW's pretty correct in my case. Considering Brainz is the only one who gets the actual Range upgrade (For Aura) I guess he's the only one I put it on 😕 Ranger and CItron need the cloud duration. That's flat out damage increase for stand-stillers.

Actually, Captain Squawk gets the aura increase too. Funny to use speaking around while in barrel mode due to the armor it gives you.

It is useless for the toxic chomper, as it gives away its position if it sneaking up on a target or a pirate in parrot stance.