Need help with picking feats for 20th level Wizard

[Raenir Salazar]

Possibly, but doesnt hurt to spread my net so to speak.

Feats: Combat casting, extra spell slot 7,8 Greater Spell Penetration, Empower, Maximize, Quicken, Extend, Spell Casting Prodigy

So as of level 20 I will have I think +9 Int for DC's, nth for level of spell + 10.

So 28 for a 9th level spell.

So far based on what spells I like using

6th Level: Flesh to Stone, Disintigrate (Transmutation)
7th Level: Finger of Death, Avasculate (Necomancy)
8th Level: Empowered Disintigrate (Trans), Extend Bigby grasping Hand (Evocation),
9th Level: Wail of Banshee (Necro), Maximized Disintigrate (trans), Energy Drain (Necro), Empower Finger of Death Necro.

So thats 3 Transmutation spells I like, 4 Necromancy Spells I like, 1 Evocation spell, and one something. But I generally memorize far more Disintigrates though then anything else. (Pesky fort saves grr)