Wow he last fight is really hard! I've been trying lots of different combinations with no luck so far :P Great game though. Big potential for expansion!
If you train a Legendary to max at level 25, it's stats will continue to grow above the normal cap. However, if you try to buff it again using Honey for example, it's stats ill reset to the cap.
Losing belts is losing players. I won't PvP at all anymore because even one ninja lost will cost me 9 Karma to make up the lost belts. Black belt guardians do the same thing: I can't progress anymore.