Either of these 1000 point lists will punish you and your false-emperor Horus.

Loken
10 Veteran Legion Tactical Squad, meltagun, PWx2, Nuncio-vox
5 Legion Terminators, PFx2, Heavy Flamer, TLC
5 Legion Terminators, PFx2, Reaper Autocannon, TLC
Basilisk

OR

Chaplain, plasma pistol
10 Legion Tactical Squad
20 Legion Tactical Squad
7 Tactical Support Squad (flamers), combi-plasma Sarge
Apothecary, Augury Scanner
Contemptor, Kheres Assault Cannonx2
Rapier, Laser Destroyer Array
Aegis Defense Line