Grey Knights -- Other Units to consider

Consider some units for a mixed list. e.g. a Crowe/Coteaz hybrid list

Coteaz: 100

2x Purifer squad (5 models, 4x halberd, 1x daemon hammer, razorback with psybolt ammo): 183

2x DCA unit 205

2x Psyker unit 120

86 points left.