Hearthpwn

Getaway Kodo secret appears not to work with sherazin

The problem with that is, you are saying a completely random card has the potential to turn around a game. Yes, you would not play this ahead, because it could lose you the game. It is also true that you could play this card as a Hail Mary to turn around your game, but if you need a completely random effect to do that, then it is the opposite of consistent. One could also argue that unstable portal is a card that can turn around your game, say with maybe a Deathwing. That, however, is considered a ludicrous idea to run the card. Unstable Portal has many other uses. Does Yogg? People play rag for Hail Marys as well, but the difference is you can play rag in other situations too. If you are losing this can become a lose more card, just as much as it can be a turn around card. Probably more likely to make you lose, because of how most buffs would  buff your opponents minions only if you don't have a board. 

This is a terrible card for competitive play due to a wide range of randomness, however, that is necessary to keep this card from being broken. It is an extremely, hilarious fun card, that will at best win you the game, at worst pyro blast yourself, killing you, and on average will end up clearing both boards and possibly tieing the game. Competitively it will work best in a high health control class like warrior and priest, but even then it can ruin you by playing cards like astral communion. Sucks on ladder, one of the most fun cards blizzard has ever designed.