Hearthpwn

I got to legend with similar deck on EU (first time getting legend as well). Currently sitting @ 850 legend in wild. Odd DH is basically an aggro deck so I did have some changes in your current build. This is what I played with =>

•  -2 Shadowhoof Slayer  +2 Consume Magic - this is only way to get past some annoying minions / big taunts or so and not spread damage on minions. Card draw also helps a lot. A must include for me.
• -2 Beaming Sidekick +2 Blowtorch Saboteur - this helps a lot when fighting mirror matches (had a lot of those matches so I switched to using them)
• -2 Happy Ghoul +2 Frozen Shadoweaver -  I found Happy Ghoul to be much inconsistent since they are mostly played off curve at later turns or need specific trigger at earlier turns which is very hard to pull off. Froze effect however helps a lot when facing mirror / aggro decks or when disallowing opponent minions to kill your minions 
• -2 Chaos Nova + Cobalt Spellkin + Loatheb - I cannot emphasize how important Loatheb really is - it literally kills mages when timed correctly. Cobalt Spellkin is also a big addition to the deck since both choices which he gives (Consume Magic or Mana Burn) are really strong vs most opposing decks.

When laddering I mostly played vs secret mages or mirror matches. I don't have the stats but from what I do remember ->

• vs secret mage - won most when playing correctly vs their secrets
• vs tempo mage or highlander decks in general - won most unless they drew Reno Jackson
• vs mirror - 50 - 50, usually revolves around who plays Blowtorch Saboteur first
• vs mech paladin - won most simply by timing Consume Magic on their big minions 
• vs aggro (pirate) warrior - won most - when you consolidate the board it's pretty much over since they do not run the board clears
• vs ress priest - 50 - 50, largely depending on having Consume Magic in hand on turn 5 and onwards
• vs odd warrior - lost all. +4 armor and bunch of board clears is too much for this aggro DH
• vs druid - lost all. Druids ramp up too fast and then play big minions which we cannot remove efficiently

Exactly as predicted, 15 to 10, what a joke.

I've been playing since the closed beta. I've never missed a monthly reward. Tbh, this is the first time I'm actually considering quitting the game.

If I have a heroic run open when it shuts down will I get rewards and ticket? 
It's not clear about that.

Ok so let me remind you real quick what this is about.

Either you slam an unkillable kangor dancing king into masked reveler and win, or the opponent rogue gets lucky and slams 4 arcane giants in your face before your turn 5.

The fact that only ladder grinding can get you a spot in this pocket size esport events killed competitive in my view. Open cups were a much better alternative for players, and also allowed people to prove they can be good with more than one deck.

Dude, keeping up in Standard is waaay more expensive than playing Wild.

Foul Egg begone!

Nice try, Blizzard.  It's still a scam.

Finally, the Heroic Rogueiseum

3 Battleground skin rewards...How disappointing. Why not have 1 skin from each mode so everyone can have something that they actually want?