Talk:Chroma/@comment-24857712-20160611050159/@comment-8256051-20160611093457

Heat - Healer (allies passing through your aura will have both their current and max health increased and then will only loose the max health bonus when leaving the aura)

Cold - Control (enemies that shoot you are chilled and receive their damage back multiplied by a factor)

Electricity - Retaliation (although indirect, since the lightning arc will target the closest enemy and will go through obstacles)

Poison - Burst Damage (faster reload will usually benefit shotguns and snipers the most)

And in most cases, Chroma can be considered a Tank. Unless you use some goofy (but popular) build with Effigy.