Hearthpwn

Quote from Ace1a >>

This meta defining card makes Dirty Rat and Gnomeferatu obsolete in renolock. Good vs. all types of decks and can't whiff unlike dirty rat pulling out an 8/8 and losing you the game. I don't run either, but I will run chaos gazer.

Of course it can whiff. In fact, unlike the two cards you mention, your opponent isn't guaranteed to lose anything from you playing Chaos Gazer.

And how is a 3 mana 4/3 with no immediate impact "good vs. all types of decks"? This is atrocious against aggro, whether they slam their already played 2 mana 3/2 into this, or not.

Quote from Lanko >>

3 mana 4/3 is decent stats, and even if doesn't end up being a major combo breaker, you can still prevent them from playing something or forcing them when they woud've preferred to do something else just to not lose the value war.

 

I'd say the stats are less than decent, considering it bites the dust against the plethora of 3-damage sources you'll be facing on turn three. It's also going to hit a playable card every time, so the tempo effect may well turn out to be negligible against most opponent.

Quote from user-100041474 >>

Very strong. Better anti-combo than dirty rat, but not a Taunt.

I doubt it. Dirty Rat allowed you to wait until they were just about ready to pop off, making it all the more likely they had the crucial target(s) in hand already. It also, vitally, took away their ability to play it. This essentially does neither, and should be even more unreliable because of it.