Maintenance that will be conducted on July 16 includes an update about skill and level requirement.
As you know, if you already leveled up and distribute enough skill points to use your skill, you can use it no matter what level your character is.
Even after delevel, it was still possible to use a high level skill.
After the maintenance, you will no longer be able to use a skill that is above your level.
For example; Your character hit level 70 and meteor skill is unlocked.
After a possible deleveling from 70 to any lower level, you won't be able to use your meteor skill.
We will keep you updated on further developments.
NTTGame||Knight Online Team