I feel like the new Echo ability COULD be pretty interesting, I say 'could' because sometimes these things are usually just gimmicky and actually have no potential in a 'meta' deck other than filling up your board with useless minions if you have no 'worth it' minions to put down already. However I feel like Rush will be generally good, its so basic but that's what makes it effective, clearing out the opponent's side is always essential. Really excited about these upcoming changes. Great post :).