Magus Greater Spell Access

[Psyren]

I'm a fan of Twilight Knife. Permanency, Greater Invisibility, Telepathic Bond, Echolocation, Emergency Force Sphere and Planar Adaptation are good for utility. No-save debuffs, like Waves of Fatigue or Enervation, are nasty with spell combat prior to firing off your full-attack or using a combat maneuver. There's a lot of good stuff out there for Magi to learn.