Hearthpwn

Can you make a guide or link me someone who played this deck? I'm struggling with the deck and it's probably me?

Are there any replacement for Sea Giants?

Believe it or not, I went from Rank 18 - Legend after playing for about 12 hours on my F2P account, with this exact same decklist. This deck requires quite an amount of skills as you need to consider your game approach (be aggressive or be conservative) depending on different matchups, but is definitely one of the best hunter meta decks atm. Thanks for the deck Casie!

Any replacement for Houndmaster Shaw?

You can't drop below 15 so I suggest you work on your dishonest comments as much as your gameplay.

Big big thanks to the author (and to kiwiinbacon as i discovered this deck on his channel)
After hitting many times rank 1/2, i finally hit legend for the first time with this deck (from rank 17, as i didnt play over the past months)
Amazing deck in the current meta.
I had a completely crazy winrate no matter which rank i was. (I even had a 10 win streak from rank 5, and hit legend with a 5 win streak from rank 1)
I do not use any tracker or anything, but I think I was around 70%
As I was winning, I didnt bother changing any single card, but maybe try to integrate an Acidic Swamp Ooze can be good in the current meta instead of Stitched Tracker.
But not a single card is underperforming.
I completely disagree to remove Savannah Highmane. This is a big threat, and the deathrattle really helps keeping the board, and for late game we need by minions like this.

-2 savana -shaw - stitched tracker + glutonous ooze +tracking +zileax +crystal smith because savana always bricks your hand and is un playable most of the times or just pointless shaw cuz you dont rly can abuse him like deathrattle hunter can stitched because too weak vs odd rogue zoo  and vs decks that you need to push them early zileax help both as defensive and aggressive tool tracking for cosistensy crystal smith because you rly need 1 drop on turn 1 that can survive till turn 2 (and help kinda in control game switching health for armor then heal).I pilot it from 1k to 155 legend pretty easily as druid are easy mu(both cuz of bearshark being impossible to deal and dk) odd pala odd rogue and odd warrior can lose pretty on spot with the right hand (dk needed most of time) zoo is rather hard but dealable very hard mu are secret hunter death hunter taunt druid and anything that makes big board out of nowhere.

Crystal Smith? There is Crystalsmith Kangor but that is a paladin card. 

1 mana 1/3 deal 5 to your hero gain 5 armor epic

easy to pilot but nowhere near as good as deathrattle hunter.

I like the deck hitting me from 20 til 16 rank :) 

Any replacement for second Sea Giant ?

i used 1 king crush instead of 1 sea giant.

You mean 9/8

Or better, 13/12

Solid deck, finally a good midrange hunter list that doesn't rely on the spellstone. I prefer the second copy of Tracking over Stitched Tracker though

Is the deck playable without Houndmaster Shaw? What would be a good replacement, if so?

If you like Hunter, craft Shaw. He is staple in a lot of Hunter decks and will be very useful in the next expansion without a doubt.

If you cant craft him, then use a Kodo for charge instead.

Houndmaster Shaw is a solid card.
I played midrange hunter for a while without him, and I could get good results, though I finally crafted him, and it was worth it. He can turn the tide of games in some cases, and he is a threat that the opponent needs to remove.

If you consider only this deck, then I would suggest replacing him with a Spellbreaker that could help you pass taunts like Voidlord / Lich King / Obsidian statue or neutralize threats like Hadronox. He would also fit in as a midrange card, his stats are not so bad.

If you are planning to craft midrange hunter (also other versions) and missing multiple legendaries then I would craft in this order: Rexxar (used in all hunter decks) > Keleseth (neutral card, used in many decks) >  King Krush (classic set) > Houndmaster Shaw (will also be used in future hunter decks) > Kathrena (will rotate out of standard next year)