Magus spellbreaker

[Reyzguen]

HI!
im making a magus caster killer like the spellbreaker from warcraft

i want to know if there more feat/trait than the one i have find

heres my built

magus skirnir

arcana:
arcane scent
lingering pain
disruptive
dispelling strike

feats:
abeyance
dispel focus
improved shield bash
weapon finess