Hi! Some players try different strategies in order to succeed in raiding, I'm sure, you'll get some advices! 

50k is delta between raided and being raided.

So enemy raid your castle for 50k rss - you can raid him back 50k+50k=100k.

Also you can get spesial buff when you purchasing sapphires. But this buff won't count in week raiting.

The newest feature that Plarium released is having bonuses for buying sapphire packages. The first bonus is you get double RSS for your first 7 raids. So if you happen to get a 50k rss raid reward, you in essence double your raid haul. Other than that, retaliation raids are the only way to gain more than 50k rss. I don't believe Plarium is planning on changing this policy at this time. You may want to read over the "suggestions" tab and see if it is an idea that Plarium is willing to discuss improving.