MapleStory 2.0: What else should be changed?

Bring back the use of equipment sets, and continue to make more variations as well as higher leveled class equipments. The Zakum Helmet for example is so ugly it's a crime to wear it, I always thought it'd be cooler if Zakum dropped a gem that can be added as part of armour synthesis to give it tremendously better stats.

Running, just like the new Pokemon games. Speed limit should be removed as well.