Something else to add on this
As I stated before, nerfing the good ones is the wrong approach however I’m going to go into more detail why this time.
The main gameplay mechanic of corruption is the negative effects. If you have too much, you have to deal with those. However, because of that the ONLY reason for players to engage in that system is if there is a great reward (DPS, usually).
NERFING the good ones will completely eliminate this system, especially without corresponding corruption value nerfs. The risk/reward ratio will be completely thrown off. Why bother with the risk of death for a 3% gain to dps?
Now, some might argue that the negative effects are trivial right now, or only punish the healers (i would agree) however that is the part of the system that should be focused on.
BUFF the under performing corruptions instead. And possibly consider buffing them ALL but making the negative effecs more impactful in ways other than damage. Perhaps the Thing From Beyond could stun the player if it hits? The Eye of Corruption could silence the player after it hits 5 stacks? Gameplay elements are GOOD and would improve the system.
But ONLY IF YOU HAVE A GOOD PAYOFF. Currently only EV/TD/IS give this payoff for high corruption values.
BONUS FEEDBACK: Currently the chance of getting a specific corruption is WAY WAY too low. Everywhere I look it seems to be around a 15% chance to corrupt. With 51 possible corruptions, that leaves only a 0.3% chance to get a specific corruption you might want. Even out of guaranteed sources like the weekly chests that is only a ~2% chance (except not really because trinkets can’t corrupt).
EVERY ITEM SHOULD BE CORRUPTED. Then you just need to make cleansing free.