Suggestion for potential done right

Cubes as a massively difficult reward is a possible idea. Imagine making them available through Silent Crusade or Grand Battle or obscene amounts of coins.

Or they could just refund all NX spent on cubes as Maple Points and eliminate potential. I imagine that would go over well!

Yeah if they don't screw it up. Plus could you imagine the incredible influx of nx. It go from where it is now to worthless. That would destroy the game, it be like a private server, especially with meso bag's. The problem with making miracle cubes scarce, without hard resetting, is that veteran players get to keep it, or start off at the cap. If you hard reset it, you got a huge loss, players will be raging, hard.

The best way to do it is scale it down by making cubes at a reasonable drop rate, the higher miracle cubes being boss/mini boss specific, and increase the difficulty of the game to compensate. This would also meaning a revamp of skills to give enough power to balance out the curve.