Battlegrounds requires a major rethink
Yes, they hyped this mode too much but I just think they've overcomplicated things by adding solo/alliance events, changing the objectives to a 2 day and requiring 5 wins and basically paywalling everything you need to start or aquire new decks.
First off, additional deck should be low price such as 100 and 300 units not 1k and 3k units.
Elders marks needed should be 1 per match not 15, atm you can buy 120 for 135 units and that'll get you 8 matches.
All in all, something needs to change drastically if everyone is to play this because atm in this state. Nobody will bother