There will always be a variation of a Druid combo that exists. Dorian going to 5 makes it so that the only real version that exists is spell damage Druid, which is more of a combo control deck rather than a pure combo deck like the previous mentions.
I’m not sure what you could possibly be doing to get milled to death on turn 5 though. Mill Druid is definitely better now that aggro is dead, same with seedlock, but mill Druid is a veryyyy slow deck. It’s annoying, but it’s slow, it does not kill you turn 5.
Well first because I’m not a game dev or rocket scientist. But even so I can tell you that it isn’t that complicated. Just make Custom a part of the game like the other 10 things that have become a part of the game. Add some check boxes or sliders, add a matchmaking/queue to find likeminded people wanting to play the same thing. FPS, MOBA, and Fighting games all do this and do it well already. So as for the How…use your brain a little bit and it shouldn’t be too difficult.
I think you underestimate – and misunderstand – the challenge. It’s not a technical problem to be solved; rather, it’s a matter of incentives and human nature.