(Update: If you are looking to play this deck, both Ascetic Lantern and Twilight Lantern have been nerfed since it was created. Twilight Lantern is still good if you play Longbow on him, but unbuffed he poses little threat now. Ascetic Lantern is significantly worse with the increase to 2 cost now, and may not even be worth including in the deck anymore.)
Stonescar feels quite competitive in the current format. There are few different ways to build it as long as you include a couple of key cards. This is the deck I played from Day 1 of the month up through Masters and it felt good in every matchup. I include Surveying the Rift as a way to refill my hand if matches go long, but the deck will usually win quickly if the opponent does not play a strong defense from the start. Raniya is currently the best counterplay to Wasp, IMO, and a must include in any SS deck.
Bloodseeker
x4
1
Centipede Keeper
x4
2
Ascetic Lantern
x4
2
Dangerous Gambit
x4
2
Hecaton Recruiter
x4
2
Murgo the Bone Guy
x3
2
Shrivel
x4
2
Skullmarket Delivery
x4
2
Twilight Lantern
x4
3
Champion of Chaos
x4
4
Ossuar Longbow
x4
4
Raniya, Miviox Maniac
x4
4
Surveying the Rift
x3
Fire Sigil
x6
Shadow Sigil
x7
Midnight Reprieve
x4
Seat of Chaos
x4
Xultan Conclave
x4
View Deck on Shiftstoned