This is my best variant atm, and would like to share this back to the community.
Doing around 20 games with win rate around 60%, so here it goes:
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Improvements in mind:
1LP 1st SS is too risky, especially you get Iczered.
3LP SS is too slow and if opponent don't finish ALL your sac unit, u gotta wait.
2LP SS might be a better fit - Verlaat (Which I don't have)
Also I would use stronghold and merciless death if I have the cards.
Afel might be a nice replacement for either Belus or Bringer.
Never really used Zombie king, but should help in theory.
Tried to make it into an all-round file as Gon recommended, but it is hard given the file is very focused on auto skill that runs on extreme conditions.
It's an auto loss against some file types, grim bane, file destruct, EN, EM just to name a few.
So I kind of thinking about making the file more concentrated on certain file types.
In order to keep cem clean and use Song of hero, the field size is small most of the time.
This makes it hard to transit into end game, unless it is slow enough to let me play removal grim.
Prob would give the file a rest and get my winrate back to 60% first.
Also thank you all for the input, it is a fun file to work with.
Ah... Everything's about MONEY, now that makes much more sense...