Hello.
Great post and I have many things to write about it, but I don't know where to find the time for it))

I wanna to mention some things:

1. This is not an indicative battle:

I like the Dragon team because of a line up like this I am not sure of a team that has such a strong lineup

the Rival have Rare and Commons Cardsand a pair fo them 1 leveled... So I hope this is the example only for line-up, but better to find (save) more good examples that can describe the real combat advantage.

1. Due to the theme of the post, maybe @battlegames may curate you too (as well).

2. Do you know that the @splinterlore account appeared? And they proclaimed the appearing new contests, maybe they can more to help you with the ideas what the best for fun & marketing things to do. =)