@Just Jacque: Trust me, I've played Hearthstone a lot and it changes a lot whether you decide to play or not a certain card in a certain turn.

@Zero X: Yes, because "app" starts with a vowel sound while "hearthstone" does not

But Jo, will it help me win as a Priest when ONiK comes online?

@Zero X: It's just about the word directly following a/an.
A flower. An old flower.
An eagle. A bald eagle.

@Thunder Thomas: Its a CCG which means 90% of time you aren't going to have much of a choice of how to play a card. You either can or you can't and thats it.

@Just Jacque: The app helps you to choose the cards, not how to play them. Even if you choose good cards, if you play them badly, you're still going to lose.

So now the only part of Hearthstone that requires any thought you don't have to think about! Why even play.

I gave up on arena after 3 separate tries getting 2 collective wins.

The only thing that irks me about it is that I play Hearthstone primarily on my phone. Since you can't use it on mobile, it feels like an uphill battle right from picking your Arena class.

@Collin Grady: "An App" not "A App"

"A Hearthstone", not "An Hearthstone"

The one time I got 12 arena wins I had 4 flame strikes, 1 blizzard, 2 explosive sheep. Its really easy to get value off AoE cards since their so rare in arena. Once you play 2-3 aoe cards people start going ham on filling up the board.

My Arenas started to go up since I watch Kripp play. That mofo really know hows to play arena.

I also use Heartharena since I've seen Kripparian play with it.
Most of the time common sense is enough to know what to choose but sometimes I am surprised about the picks.
Also been doing far better in Arena since. Never gotten close to 12 wins unfortunately though.