When upgrading a weapon goes wrong it seems unfair to both lose the materials used and lower the weapons upgrade level, i played this game till level 21, lost all my savings upgrading a weapon (it is now +1) if anything this just seems like a way to deter people from your game so it'd be cool if you choose to fix this. Other than this, your game is awesome, cheers.
Kholai needs a higher damage multiplier for his special, he is far from worth 40 million currently. Also rage instead of shield would make him appropiate for more situations.
 "Dungeon Rampage"){kind=icon}
 "Sword & Magic"){kind=icon}
 "Epic War Saga"){kind=icon}