Hearthpwn

For me the fix would be:

Battlecry: Summon a copy of a random minion in your deck that costs 6 or less.

That way, Barnes will still be viable option in midrange deathrattly decks (rogue, hunter etc.) because you can still pull Highmane or Sylvanas and the like. But it will shut down any shenanigans with YShaarj as well get rid of insane turn 4 for big priest.

And yea, Voidcaller is also powerfull, and it also needs a nerf.

Got dced too... "go online" button doesnt do anything. Maybe just some small hiccup.

The main benefit of a digital card game is that you can make balance changes on the fly. In real life (games like MtG), whats once printed is set in stone. In my opinion Hearthstone has completely squandered this whole advantage. Cards that are ruining experience (Barnes, Voidcaller etc.) are kept unchecked + remember how long we had to deal with Patches the Pirate? And more importantly, cards are not being buffed ever. The excuse that they dont want to buff cards because it might become too strong or something is total bollocks. If you accidentally overbuff something, then you change it back.... Thats the whole point of digital environment, that you can change stuff...

Also, for a five year old game to have only two play modes - Standard and Wild is kinda lazy. In games like MtG a format can be created from the bottom up. The whole concept of Commander and Pauper was player driven. In Hearthstone however, nothing like this is possible, so it has to be top to bottom. And HS team has really the dropped the ball on that front.