Return of Reckoning

Hello fellow players!

I have little dillema spending some of the mastery points and I would like to clarify couple of questions.
I hit Corruption path to Downfall and Discord path to Quake. Where should I go next:
1. Go to the top of the Corruption with Oppression skill and M4?
Morale looks really good. The skill itself... Just make You more tanky. Is there any need to be more tanky?
2. Go for the Tzeentch's Reflection skill and M4.
Skill looks cool, morale not really, but...
First: 50% people attack tanks when it's not needed so I can silnce them.
Second: Does silence affect AoE?
Third: Does silenced player get a silence immunity for some time?
3. Go for AP aura.

Yes silence works on aoe spells that you disrupt, and yes they get immunity from in. your other choices are purely personal preference. both oppression and tzeench's reflection are good in their own way.