You seriously have to change is the distance the bosses run towards you. Many of the MVP bosses can easily be killed with the help of an archer class, simply by attacking him from a cliff. The boss then tries to run to your hero, but turns around halfway, and returns to his original position. It takes a while, but it is incredibly easy to kill 80% of the bosses without even getting touched by them.
How about a little bit of description of what you have to do when LOKI arrives?. I still haven't really figured out wtf I'm supposed to do (apart from defending Prontera)
Use floating text/texttags to mark where the warps go. It is frustrating to actually having to walk into every single one to find out where they lead.
Many spells could be done better with a little bit of coding effort. That would greatly increase the fun in playing, since it really isn't exiting to use Wc3 standard spells for 90% of all things.
Wth does the Assassin Cross have rain of chaos as an ability? That is just completely unfitting.
The Boss fights are kind of boring, most of the just have a stun spell, and attack you. Some have a few other things, but none of the are in any way original/exiting
The LVL3 Job Change quest is to easy. The LVL3 Test boss is the weakest of all the MVP bosses, and is easy to find as well.
For the ease of understanding, you could make and image of the world map(the minimap, maybe edited to look good as a map), that can be called via a command (-map or something) and is then shown as a CineFilter. This should then have the names of areas, warp connections, and LVL recommendations on it.
The item descriptions are messed up. Some items say "Main hand" others say "Weapon hand" some weapon hand items are actually for the off hand, and some (L) items are in the Mainhand, while other (L) items are in the offhand. The same goes for (R) items.
You need more, and proper quests. Right now they are short boring, and more like side riddles, that are not worth solving, cause you barely get anything for them (800/500 exp and gold are nothing)
Some creeps seem to be placed at random in their areas, which results in them oftem being placed underwater, or inside walls etc.
Novices can pick up purple items, but not blue ones. --> Messed up.
Some bridges etc are not placed properly, they are floating above ground etc.
Make potions, or any items that has charges stackable.
Make Job specific armor, helmets, boots etc. Arcane helmet for example gives 1000sp which is way to IMBA for some classes, resulting in them being able to spam their spells indefinitely, which defeats the purpose of having sp.
It is really depressing that most of the time, MVP bosses don't drop anything. You should think about changing that. If the same boss doesn't drop a single item after 5 kills, people get bored, and are not motivated actually do him again, or even go on playing, since it does not feel rewarding at all.
Instead of putting everything into one spell book, give the hero 4-5 main active skills, and put the leftover actives into a spell book, and the passives into another one.
Even better would be to be able to choose 5 spells that are directly accessible by your hero, which allows more customizable hero builds.
The archer's Agi Based Single target damage spell (forgot the name) deals 5xagi when having Job1, but only 2xagi on the consecutive ones.
The Legendary shop is way to hard to find, i actually searched it with a friend for 2 hours, and didn't find it. Even with the "iseedeadpeople" cheat in singleplayer, i couldn't find it.
Sometimes there is a bug when LOKI spawns: you just loose. Like after 20secs, even though the first wave isn't even in Prontera.
Optimize your save/load code, its getting longer and longer and longer. Its horrible.
How the F*** do you get into the ice area?
Why do you get teleported into a hole first when entering the warp in Umbala, and then to the cathedral?
How do you use the Player Property thingies at the bottom right of the map (with the sentry ward models)?
And one last thing: Learn how to use GetLocalPlayer()--> All the text tags shown in combat, especially combat are tedious as hell. Only show the ones relevant to each respective player.