Beastmaster needs a natural dual wield,because he is made for single handed weapon.
Ninja (katana), THF/DNC (dagger) already have it and the 2 jobs w/o dual wield are BST (axe) and Blu (sword) atm.
if u fight something with pet it would be possible to use the 2 pdt- axes and could sub cor to add a roll for pet att+ or acc+.
i really would love to get the full potencial of bst.