Hearthpwn

Unless Omnotron Defense System has some kind of downside that work against him(like shaman's hero power that cannot summon a dupelicate totem) this is the strongest hero power effect. I can see so many problems with a hero power summons an 8/8, 6/6 , 4/4 and 2/2. Put your thinking caps deck builders since I have no clue what kind of strategy could be used against this.

Well leave the 2/2 alive, it gives you spell damage +2. Then use mage.  The 6/6 makes your spells 3 mana cheaper.  The 8/8 is the most scary one but we have Polymorph and many other ways to kill him. Sure this will be a difficult boss but Priest/Mage sound like they will be good options. Shaman too.

Quote from Demaier »

Well leave the 2/2 alive, it gives you spell damage +2. Then use mage.  The 6/6 makes your spells 3 mana cheaper.  The 8/8 is the most scary one but we have Polymorph and many other ways to kill him. Sure this will be a difficult boss but Priest/Mage sound like they will be good options. Shaman too.

Fair enough. I can only imagine how difficult this fight must be on heroic.

Yeah I know what you mean. Plus we never know what his deck will be like. He could be one of those bosses with a very unique deck. I do expect him to be hard. I am assuming right now that he will have a lot of spells. Because the hero skill helps spells. So mage may be the best choice with counterspell and lots of damage. Perhaps he won't have minions other than the hero power ones. Some of these fights were really unique.

http://www.hearthpwn.com/cards/14602-activate-magmatron I just noticed this. Seems it could take 8 mana for him to summon magmatron.