User blog comment:Smaugtastic/Secrets to Dragon Story/Tourney Battle Plan/@comment-26201154-20160428115619/@comment-26035215-20160428135759

Just use the battle arena calculator. If I understood what I just read, a Valiant (Diamond/Champion) will do as well against non-champs as any pure-typed Champion, but will do better against a pure Diamond/Diamond hybrid. Valiant will also be the best dragon to use hands down against any Champion types (including Rainbow Sentinel and Valiant itself) but Diamond dragons and pure Champion types can also do fairly well against another champion.