Revamp Potential?

Technically speaking, I would say that the potential feature is also a victim. When potentials first appeared there were a lot of lines that had nothing to do with damage. Things like making weird faces and whatnot. (thus more balanced) Maybe they did not directly add to a characters power but were kind of "just for fun" or encouraging more variety among players. However those times did not last and soon potentials would be twisted into yet another tool for micro transactions. It is a tragic fate but now they are nothing more than all about damage, damage and more damage. In Nexons defense, adjustments like these are what some players might have wanted but potential was not always the creature that it has been changed into.

Even that much is pretty open to interpretation though. More damage is not automatically bad, simply that it depends on what is the goal?

To take it to the extreme, what about for a high price using a cube allows the player to pick a potential of their choice?

Cubes were always micro transactions tools, and what you mean more balanced having more trash lines(it's the exact oposite)? You seens so desperate to not have a big powercreep, but it's already too late, there's no way to change the game's powercreep without heavily damaging everything, and i highly doubt they would considering to change with all the whales at KMS, not much reason to change the powercreep if it gives nexon money, cubes should be something that had a lot more chance to get good stuff, like less trash lines and maybe other things that could easily be added(like cubing one line at time), that way it wouldn't be so pay2win and you could actually get good stuff with maybe 100k nx.

I wouldn't say damage is bad, it's sorta natural to MMOs that goes too long , it happens in storyes too(look at Naruto and Dragon Ball for exemple), it will just grow since it's a bit hard to get new stuff without making it stronger than the things that already exist.