Talk:Battle Arena/@comment-27080397-20151023042558/@comment-27076385-20151024043836

I think it's a good idea to keep a level 15 Diamond or Infinity (pure), level 15 Champion type (any), and a few other SR hybrids as backup if you can manage it. Diamonds are strong against Champions, so use the Diamond or Infinity against Champion type opponents. Champions are strong against a wide variety of dragon types, so you can use them against most non-diamond and non-champions. I wouldn't really recommend using common dragons in the arena. Rarity and level are both very important factors for winning. If you don't have access to Diamonds or Champions, then find a couple super rares with relatively low food cost.