As I have been doing research on the many dynamics and inputs to this games damage system, I have continually run into an interesting anomaly. (Don't believe me? Check out my threads in the wiki edit subforum.)
4* items increase in damage as a 5* item would.
A 0* item will gain damage/armor/hp until the end of stratum 1.
A 1* item will gain damage/armor/hp until the end of stratum 2.
A 2* item will gain damage/armor/hp until the end of stratum 3.
A 3* item will gain damage/armor/hp until the end of stratum 4.
A 4* item will gain damage/armor/hp until the end of stratum 6.
A 5* item will gain damage/armor/hp until the end of stratum 6.
This breaks the pattern. It is rather worthless to upgrade most shields from 4* to 5*. There are few incentives to upgrade weapons with the limited availability of radiants. I agree on the rarities, but do not agree on the comparison between 4* and 5*.
I propose that all 4* weapons, armor, and shields stop gaining power at the end of stratum 5.
+1
That is messed up.
Fix it naow.