As of the Justice update, Zakum has become instanced. In being so, it's now easier for anyone to get into Zakum (not that it was that hard before, but still), and since my character is now stronger than ever, I can easily solo it within minutes.
Now, the reason why I say it's a limited time offer is because Nexon Japan goofed. Usually, we have +4 to all stat Zakum helmets that drop. At the moment, Zakum drops +15 to all stat Zakum helmets!! So, for anyone that gets to level 50 or higher on JapanMS, I will grant them a free Zakum helmet so long as they can do the prerequisites to enter it. The only thing I ask in return is for 4 of your 5 Eye of Fires (because you will need 1 to be able to enter the altar and I will need some to summon Zakum).
Be quick about this! I do not know when Nexon Japan will change this back!