Been thinking about dual Adaxus's (currently still running with the old faithful min2's).
The axe (for those that dont know) is a base 20x4 slashing weapon, and because it is an axe so you can pick up headsman's chop in LD,
Its also a battleaxe, so no need for exotic proficency, just Icrit:slash. This also happens to give us a 19-20 crit-range.
Boosting crit lines we have Overwhelming Critical, and either Devastating Critical + Headsmans Chop in LD or the Crit + in Primal
(That said, I could potentially twist symmetrical strikes and just stay in fury/ld)
Will have to play when I get there, not much time to grind and still trying to get through grandmaster :/