1000pt list advice

I have a 1000pt tournament coming up. I was wondering what you guys think of this banishers list

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• FACTION KEYWORD: Imperium - Grey Knights
• DETACHMENT: Banishers (Channelled Force)
• TOTAL ARMY POINTS: 1000pts
• WARLORD: Char2: Brother-Captain
• ENHANCEMENT: Sigil of the Hunt (on Char2: Brother-Captain)
• NUMBER OF UNITS: 7
• SECONDARY: - Assassination: 3 Characters +++++++++++++++++++++++++++++++++++++++++++++++

Char1: 1x Castellan Crowe (90 pts): Black Blade of Antwyr, Purifying Flame, Storm bolter Char2: 1x Brother-Captain (100 pts): Warlord, Nemesis force weapon, Psycannon Enhancement: Sigil of the Hunt (+10 pts) Char3: 1x Brotherhood Librarian (80 pts): Nemesis force weapon, Vortex of Doom, Combi-weapon

5x Strike Squad (120 pts) • 1x Justicar: Nemesis force weapon, Storm bolter • 4x Grey Knight: 4 with Nemesis force weapon, Storm bolter

10x Interceptor Squad (260 pts) • 1x Justicar: Nemesis force weapon, Storm bolter • 9x Interceptor: 9 with Nemesis force weapon, Storm bolter 5x Paladin Squad (225 pts) • 1x Paragon: Nemesis force weapon, Storm bolter • 1x Paladin with Ancient's Banner: Ancient's Banner, Nemesis force weapon, Psycannon • 2x Paladin with Heavy Weapon: 2 with Nemesis force weapon, Psycannon • 1x Paladin with Narthecium: Apothecary's narthecium, Nemesis force weapon 5x Purifier Squad (125 pts) • 1x Knight of the Flame: Nemesis force weapon, Purifying Flame, Storm bolter • 4x Purifier: 4 with Nemesis force weapon, Purifying Flame, Storm bolter