With Infused and Shadow Mundus, this will be BiS setup. Rest of the pen you can get from CP. For group situation with good debuffs, precise with infused with shadow and for solo Sharp with Thief.

Question is for stam builds, do. they want current axe (infused) + dagger (sharp) setup or 2 dagger (infused + sharp) for more crit, as dropping thief will hit hard for crit chance unless you play Kitty. My bet is on 2 daggers.