With the introduction of Monomyth and Subclassing, Malacath seems to have lost its place in buildcraft. Since every character now benefits from major force, even after factoring in all sources of critical resistance (e.g. impen trait, rallying cry, etc.), Malacath never comes out on top. The original appeal was that while it might not always outperform critical damage builds against opponents who ignored crit resistance, it was the clear winner when facing those who did invest in it.
I really think this mythic needs an adjustment.