KMST made some changes whose purpose would be to prevent people from having one Maplestory M Mesos skill to train (or boss).Things like adding cooldowns or requiring charge-up, effectively altering the playstyle of classes that used to rely on a single maplestory skill.

And I can not help but ask: why is that necessary? Some might say that spamming one maplestory ability all day every day is dull. So? Play one of these if you discover the one-key classes dull. People who picked the monotonous classes, presumably appreciate that playstyle.

Some may say that relying on buy maplestory 2 mesos one maplestory ability is idle. Provided that spamming one skill on class A doesn't get you any better rewards than varying abilities on class B (in terms of maplestory2 DPS or whatever else), why don't you allow idle people be lazy?

Finally, there's the issue of keyweighting. If it's possible to spam one maplestory ability daily, a rock could do it for you. But for this, there are other solutions, like forcing movement after some number of strikes. The sport already has this, it just needs to make sure all skills are restricted this manner. There's no need to force people into playstyles they don't enjoy, simply to prevent cheating.