Board Thread:Game Discussions/@comment-7249699-20140124075113/@comment-24003266-20140124204950

First, continue to gain XP by running thru storyline levels as above contributor suggests. Regardless of ur level, run ur three knights and two friends once you start getting resistance maybe as soon as lv 10; this will ensure you maximize the potential of all knights, including friends. Hopefully you can reach at least lv 13 on a single run (5 knights) w/ this strategy. Be sure not to start a run unless you have full 10 energy. Then, when you die before beating the boss in a single run, you will need to wait up to 1 hr 40 min to regain 4 energy so u have 6 total so u can equip ur main knight and use ur next 2 strongest friends. This should hopefully allow you to ultimately complete level 15, but pay attention to how far you get on one run during lv 14 and how much energy is left on ur 4th friend at end of 2nd run. Figure u can expect to double the EB's remaining HP after one run on 14 and that's where u will be after one run on 15. If it looks like you won't make it, then I recommend using well-timed crits (for a gem each) during battle on ur first run when all 5 knights (including two strongest friends) are at max potential, but save these crits to use w/ your friends to maximize damage. This will likely cost you fewer than 10 gems so its better than paying for a full energy refresh. If timed properly, you will hopefully have ur two best friends available on ur first run to again maximize their potential, and ur next two best friends for 2nd run.

As far as friends go, Maelstrom Irons or Beast Master are probably the best armors to use against this EB, although Glacius+ will do very well. Search leaderboards to find strong friends, paying special attention to stats and selecting strongest. Send out a ton of requests as you may only get a handful of accepts. To increase ur odds of adding strong friends, select friends starting at lv 70 or so as you are still low level which means ur friends stats are tempered by the stats for ur level, another reason its impt to grind stroyline for XP to level-up. You have plenty of time to get this EB, just work the clock and you'll get there.

Good luck!!!