Focused on solo and co-op? What's the point of that? It'll be like those dreadful Tavern Brawls that pop up from time to time in Hearthstone where you have to interact in a positive fashion with a random other human being.
And the solo side of things is clearly going to be ripe for full scale monetisation larceny.
Besides which I'm well over five years into the hole on Hearthstone now, I won't be starting any other digital card games now.