Hearthpwn

I don’t really understand the inclusion of a weapon-package, especially running Livewire Lance when you want to get value from Blatant Decoy. Other than that, I’ve tried Big Warrior so many times, but it’s way too slow and incredibly awkward to play. It needs some good control-cards to work early game, so let’s pray for those.

This deck is very slow. You're going to need more early game if you want to survive against for example Tempo Demon Hunter. Spending 10 mana to summon to Rattlegores is likely too slow against them if they've managed to smack your face enough.

1. Actually, that is the way Big decks work ;D They are very slow, and losing against Aggro/Tempo 90% of the time.
You can't fit any "early" minion here, except Kargath Bladefist. Others will ruin your 6-10 rounds plan. But if you are talking about spells, it seems that I already included all the PLAYABLE "early game tools", that could be. 
The only reason I could include any early game minions - "much of tempo" meta. But than It will become more kind of a Control Warrior, not BIG :D

2.Now I have only 4 minions that could be useful for a mid-game plans on my mind... These are: Bone Wraith, Khartut Defender, Scrap Golem and Ruststeed Raider. But not sure about last two.

3.I will be happy to see your recommendations on this point ;)

So now I just looked at "early game tools" available at this moment... And Bulwark of Azzinoth, Ramming Speed are cards, that I can think on including. But I am not sure if you will have enough late game pressure.

Boom Squad is good for getting some early game (or some mid/lategame in certain matchups) and Archmage Vargoth can highroll with ripper.

Yep, Archmage can highroll, but how often will it happen?) Other times it will be almost a dead card, or maybe used with some cheap spell. But is it strong enough? Maybe it could fit in as some "card replacement".

Boom Squad is a good suggestion, but idk what will I cut off for it. Maybe Sword and Board, if meta will be slow enough? Or another Burly Shovelfist. Again, not sure about that. I am pretty sure, that Burly is going to be traded with other huge minion from a new expansion.

(It's my second account, been created because I lost my main like year ago or something and found it moth ago, now using it from my phone)

This feels like it should be a modified version of dead man's N'Zoth warrior in wild... but this looks cool! Certainly feels like what Blizzard wanted to see with the design of Rattlegore

Thanks alot for your first feedback!) Yep, it seems Big Warrior was waiting all the time just for that Rattlegore :D