So I'm having a hard time reaching legend this month. I usually get there in the first 10 days or so, but I hit a wall around D2. I really feel like I can do it, but a few matchups are killing me, and I can't decide which version to run. Struggling with Pirate warrior, mage, DH, and both shaman flavors. Easy matchups are any priest, rafaam lock, drake lock, any egg deck, any DH deck.

Core Cards: 24 cards

2x Cursed Catacombs

2x Cursed Chains

2x Drain Soul

2x Shadowsworn Disciple

2x Caged Cranium

1x Godfather Kazakus

2x Imp Gang Stooge

1x Godfrey

2x Shrine of Twilight

2x Spire of Solitude

1x Ultraxion

2x Annihiulation

1x Deathwing

2x Unseen Atlas

Tech/Disruption:

1x Rustrot Viper - warrior, shaman, paladan, quest mage, attack druid. Auto-include 1 I think

2x Ancient Augur - auto wins vs. most combo decks (especially rafaam). I'd have a hard time getting rid of this, but it is too slow for pirate warrior and zee shaman.

1x Cho'gall - Really good in longer matchups, but maybe it's a win more card? Definitely too slow against any aggro deck, but it seals the deal against almost every slower matchup

1x Gnomeferatu - Better tempo than Augur, but no control over what gets burned

1/2x Glacial Shard - attack druid, DH, warrior. Decent a lot of the time, but not gamechanging imo

Removal/Fringe/Can't Decide:

Mortal Coil - kills pirates, draws a card, but feels useless a lot of the time. IDK if this deck needs more draw

Shadow Rounds - really good against aggro, but feels like a dead card in any other matchup

Tachyon Barrage - been experimenting with this as a finisher. It can kind of save you against wide boards, but I've also had it kill me a few times

Hellfire - obviously great against wide boards, but often times you can't afford the 3 damage

I know there's also the Animancer version with either Ultrigasaur or Asphyxiodon, but that takes up a lot of valuable room with the suffle card as well.

Mulligan: usually looking for Disciple + cursed chains, especially against priest/warlock. Always keeping catacombs and atlas, keeping viper against attack druid, DH, and warrior. Will keep Caged Cranium against faster decks if I already have some draw, will keep Img Gang Stooge except for warlock and priest. Against slower matchups I will keep/look for spire, especially if I have coin and card draw already. Sometimes I will keep Kazakus against warrior and pray for +12hp or card steal vs. combo decks. Any advice? I haven't really struggled like this to reach legend in quite a while, feel like I'm playing well, and don't really want to switch. I'd say pirate/dragon warrior is by far my most common matchup even though it should be priest according to HSGuru