Grimorum: v6.79: 4-0-4-1
The new EMP buff is huge for late game aghanim/refresher Invoker. However, without 7 levels of quas, 6 spell continuation combos will be difficult to execute. This new patch will make invoker's early game and late game stronger. Supports will roam more often, so quas is prioritized over exort. Ranged Heroes now get the same denied experience as melee heroes. By the way, Invoker beats TA pretty easy now with quas focus and spirits/snap.
For my detailed Invoker guide after 6000 games, see: