"Or just make another version of "Overcharged Envymaster" that deals normal damage."

I have a better idea! Lets take the current Mixmaster and buff it enough to extreme damages so that it surpasses the Acheron against a deathmarked enemy. Then give it a "great chance to cause massive Shock!" status effect. Also, increase the rang and amount of disks fired. We will rename this the Overpowered Envymaster.

Then a new gun called the Overcharged Mixmaster will be made with reduced everything and no shock. It can be used by everyone! (Who doesn't have Envy on their side.)

But, I do think Normal damage is the best way to go for this weapon.