Quote Originally Posted by MisChief View Post
You can hold any equipment you have a plan and can grind for. The top players have finished all quests and HRs and most have maxed levels on blacksmith and talent. You can level them up to the level you are in game or the max, which is 100.
I am positive you can only upgrade equipment to 99

However there was a period when you could go to 100 and some people got a sword or spirit to 100. Then a patch came and changed the max to 99.
I am positive this was an unannounced changed like most.