User blog comment:Sylvandyr/The math behind the Battle Arena/@comment-26464603-20150604135754/@comment-26464603-20150604151025

Thanks, I did think that was the case.

But is i also the case that having a higher rarity does nothing? Since the table for the rarity index doesn't go into minus numbers it would suggest that so long as your dragon has the SAME rarity at least as the enemy that you don't gain anything. It only takes effect if you have LESS rarity?

So sorceress vs amethyst for instance, well A - S = 1 - 3 = -2. So that works out to a score of 0 presumably?

Also I do have some coding experience and a fondness for algebra and tables so if you would like assistance in compiling missing data dragons just leave me a message :)