Found some problems:
If you take the Gift for Magic trait, that CL increase overrides any increase by a staff.
Also, there are some drawbacks not tagged correctly, despite being sphere-dependent, and can be taken without having that sphere:
- Blatant-Side Effects (Mind)
- Cloaking Darkness (Dark)
- Crepuscular (Dark)
- Fission (Creation)
- Gas Mage (Creation)
- Glorious (Life)
- Inspirational Caster (War)
- Kindred Knack (Mind)
- Lens Focus (Light)
- Lost in Translation (Mind)
- Material Mimic (Creation)
- Medicinal (Life)
- Nimbus Focus (Light)
- Nyctophobic Casting (Light)
- Personal Magic (War)
- Photophobic Casting (Dark)
- Roving Glow (Light)
- Shadow Dependence (Dark)
- Slow Recovery (Life)
- Small Unit Strategist (War)
- Squadron Elite (War)
- Sympathic Healing (Life)
- Tactile Charm (Mind)
- Unnatural Remedy (Life)
- Water Wizard (Creation)