Talk:Vel'Koz/@comment-24054340-20140219172806

So after chrunching a bunch of numbers,  CDR > MPen >>> AP.

There's a limited source of MPen. And a cap on CDR. So i'd actually recmommend skipping ionains (which will be nerfed anyways) and buying 40% CDR, even if you waste the masteries.

So....

Void staff + Torment + Sorc + Challice (or talsmin for duo lane) + MPen quints as core.

Morrelonomicon + Rabidons for glass cannon.

Spirit vistage + Locket for more defensive.

Possibly top it off with will of the ancients. Since you'll be standing behind your team, support auras seem good.