Idea Hazmat Class - Buff Idea

HAZMAT CLASS BUFF IDEA SUGGESTION
I know many people might not agree with me, but I am getting tired of everyday using the same kit. SO maybe we could improve some classes who are typically right now too weak to play. My first thought was, "HAZMAT!" I used this kit recently, and it wasn't as bad as I expect. But, then I tried playing it more but it only resulted in being targetted, and defenseless the second that I threw the randomly generated debuff. So I have come up with two idea's the come to mind as I am typing this. Either a more damage output class, or a tankier class.
DAMAGE
With any buff comes loss, and I believe if Hazmat were to get a more damaging output, you would need to make the class weaker, armor wise. What I was thinking was maybe bringing it down to a Chain Helmet, Leather Chestplate (Black), Chain Leggings, and Leather Boots (Black). This would significantly change the amount of damage this class could take. By doing that, we could afford to put Sharpness I on the sword, and increase the level of the randomized debuff. Making it last a couple seconds longer also. By doing this, you are able to balance the class by letting it get stronger tools to use, but decreasing the amount of damage it takes.
DEFENSIVE
I believe that if we were to update this class to be more defensive, we would need to upgrade the armor. Maybe keep the chain helmet and legs, and replace the chest and boots with Iron classed armor. This would bring out how much damage the Hazmat can take. But of course, now is the part when you have to reduce the damage it can give. Given the situation, the Hazmat class cannot produce much of any damage. So, reducing the level of the randomly generated debuff, and giving the class an infinite Weakness I effect, reducing the damage the Hazmat can output.

So there is one more Idea I have in mind, but I didn't think it would work so well and would make this class be a little too op. But, I thought about giving the class a randomized buff instead of a randomized debuff. Increasing the Sword to Sharp I, and removing some of the armor, or make it weaker. This one idea is still in development so I don't have much else to put in! But, I just want a little bit of more variety in Kit than the usual Melee.

Any suggestions are always welcomed @TheTrogs @DeCasperr @GetShadowRealmed :]​