ASoIaF
Sha'Ir into Mindbender and Anima Mage
I'd be starting at Sha'Ir 5/Mindbender 1/Anima Mage 4
I take the binding feats to enter without a dip and I'll be taking Mindsight too.
I have a binding level of 6 and, so far, 1/day Free Metamagic. I'll be aiming for Persistent Spell eventually and will achieve a handful of all day buffs in a world with very few people capable of dispelling.
Malthus binding alone from day one would allow me the neat trick of seeing through a magical Raven at-will.
I want the Eyrie for my own so I'll spend a bit of time messing with people, using my Raven and other small animals and my Telepathy to establish myself as a recently awakened ancient spirit before revealing myself.
Because you see this is the land of my ancestors and I am simply reclaiming what is mine through right of conquest, that's what your people do right?
I already have enough magic to take the Eyrie singlehandedly and I can keep myself fed and sheltered so my plan is to just start acting like the boss and dealing with anyone who disagrees.
I could cut off the pass at night and re-establish it in the morning if I really wanted to and there's nothing they can do about it.
If Zceryll is available I have a constantly active mid-high level summoned creature available, refreshable every 30 seconds and I dwell in the land of chokepoints and deadly falls.
The rest I'd have to wait for reactions, Bloodraven, Jon Arryn and Robert etc.
Astaroth will let me take any Item Creation Feat so I'll be kitted out properly sooner or later, I'll have all the threats and reagents I need to become stronger through use of the Planar Binding line or I can pop over to Asshai and Sothyros.