No.
It was the first sign of once more or less ‘great design’ deteriorating.
By the way, like the Deathlord, it was mostly a bad card suitable for occasional trolling if a lucky moment, suitable for Trolden’s video, happens.
Not really… It’s mostly ‘meh’.
That Deepminer one is a problem.
Even if you run a bunch of Plagues, it is guaranteed 
to dodge them, enter on turn 6 and instantly destroy the opponent’s hero.
Yep, making it something like 15 mana would probably be reasonable.