Thanks Ember. I would add 10 ward per sec per minion for 5pts in soul conduits and 16 armor and 16% health regen her minion for 4 pts in empty the graves.
For zoo minions that can hit 20 summons that is a substantial increase in personal survivability.
+200 ward per second +320 armor, +320% health regen for 9 passive points is pretty impressive.