Auriok Steelshaper does not have is place in the deck .

1st its a dead card most of the time .
2nd i play a budget vesion and i never had problem clampin my kobold.
3rd glimpse of nature is much better and is another way of winning.

I'm happy that you talk about the mono black version of kobold because
i personnaly play an unpowered this version of the deck .

This version is unpowered but is very fast I began playing mono black
kobold  with Carnival of Soul and Reaping the Grave but after a lot of
play test i came with this build that is faster can easily 1 st turn kill.
The averge kill is on turn 2.

12xKobold
4xOrnitopter

4xDark Ritual
4xCulling The Weak
2xSong of The damned
4xESG
1xSol Ring
1xMana Vault
1xMana Crypt

4xSkullclamp
1xNecropotence
1xYawgmoth Bargain
1xYawgmoth Will
1xDemonic tutor
1xVampiric Tutor
1xDemonic consultation

sb:

4xPheryxian Negator
4xnantoko shade
4x Hypnotic Specter
3xTormod's Crypt

4xTendril of Agony (personnal choice)maybe 3

3xCabal therapy
10xSwamp


There the version i'll play if I had power.

12xKobold
4xOrnitopter

4xDark Ritual
4xCulling The Weak
1Song of The damned
5xMox
1xSol Ring
1xMana Vault
1xMana Crypt
1xBlack Lotus

4xSkullclamp
1xNecropotence
1xYawgmoth Bargain
1xYawgmoth Will
1xDemonic tutor
1xVampiric Tutor
1xDemonic consultation

3xtendril of Agony
 
3xCabal therapy

10xSwamp