Hearthpwn

Malkorok is pretty easy to change. The creator of this deck will dissagree with me, but I think there are a fair bit of cards that you easily could change Malkorok with. Gorehowl, Sylvanas Windrunner, Chillmaw and so on. Grommash Hellscream on the other hand is allmost impossible as he will be your finisher against all control matches. Try Leeroy Jenkins or some other powerfull or charge ability minion. Then again, if you plan on playing a lot of warrior Grommash Hellscream is a must have card.

How to play against Hunters?

My list is very similar, except i dont have Ysera in mine and Malkorok. I use an extra Faerie dragon and Frothing Berzerker. TBH, i dont understand their place in the deck. Ysera is not a tempo card, she is a control card. She wants to be used in the long games. Malkorok is a tempo card but you can gain tempo by getting a good weapon or lose tempo by getting a bad weapon (cursed blade). I find having the extra faerie dragon is very strong because an extra dragon is very good. The extra frothing is something else to play on 3. You dont normally want to be stuck playing a tempo ravaging ghoul. 

yeah its the more cheaper version. Ysera can rescue you games or give you burst cards. shes very good when you have board and you normaly have always board. if you lose board you cant recover. so she really fit in.

You can use deathwing or nefarian.

Its not bad, you're bad. Dont over commit vs control. Know your matchup and play around board clears.

thats not true friend. If they dont have answers they get steamrolled.. sometimes on turn 8 or less you beat cthun warrior if they have not the answers.

also this deck stomps control priest.. because of the many charge 4 atk minions 

You're lucky to run into about 1-2 control matchups in every 50 games right now in the meta.  Aggro, face and zoo dominate the meta right now and have for a long time.

Decent winrate, pretty fun to play. A bit of a either you win by mile or lose by one deck, but thats fine. Only card I can't see any logical use for in this deck is Malkorok as he seems to be more fun to play then actually usefull. Overall, great deck thats fun to play around with, even though the power level of it isn't on top meta level. 

Yep hes fun but can be really good. If you have good RNG it can closes the game

What can I use to replace sir finnley?

i dont know: finnley makes your useless heropower more useful. also 1/3 body for 1 mana. can trade silly onedrops^^ 

I have the dust to craft him but idk if it's worth it.

You cant craft finley its an adventure card

Twilight Guardian > Bloodhof Brave

Ysera > Neferian

Can it work?

And any replacement for Malkrok?

Your changes should work, but win rate will get somewhat worse vs. anything aggro. When it comes to Malkorok, use a Gorehowl or some other power play minion with a recover mechanic or just an over all good ability, like Sylvanas Windrunner.

I would rather commit Deathwing 

Malkorok cant be replaced its a good 7 Fred with upsite a good weapon.

Twillight guardian is pretty strong also dragon synergy yes you can swap with bloodhof brave but its a bit less good ;)

Soo, can grommash replace with any other card?

Replacing Grommash Hellscream is pretty hard. You don't really have any other card in the game that does what he does. From how this deck looks, he will be your main finisher in allmost all the control games. You could try to go with Leeroy Jenkins, but replacing Grommash Hellscream is allmost impossible. If you plan on playing a lot of warrior, then Grommash Hellscream is a must have card.

What about choosing right class spell with sir finley?

lifetap against control for keep tempo, vs midrange  fireblast.