PLEASE! Fix Siege Mode!

I love this game but dear god the siege mode is completely unfair. The main problem is that I was upgrading things with crystals, then I figured I would go into siege mode to earn some more but because I upgraded every thing too much it was impossible to win. PLEASE fix this now Im stuck doing a mode I love. now Im stuck in the campaign because my stuff isnt upgraded and in siege mode Im stuck because of my stuff being too upgraded.

Roxas4213 about Heroes and Castles