Depending on your playstyle (Zerg or 8man/roaming) I'd suggest the following:
Zerg
Mcl 1
Purge 2
MoArcane 2 (capping Bases)
TWF 3
-> Up Mcl to 2
-> Up Purge to 3
-> Up TWF 5
8man/roaming
Mcl 1 -> Mcl 2 if you're running oop frequently
WH 1 (allows your heals to crit)
MoArcane 2 (capping Bases)
Purge 3
TWF 2
VR 2
Det 9