I've been humming and hahing about making a sisters army for the past little while, and when the new box set came out, I finally pulled the trigger. With that and what I've already got, I managed to just scrape together 1000 points. I haven't actually played as or against Sisters before (somehow I manage to unintentionally dodge them in all my games despite there being a fair few sisters players in my local meta). So I just wanted to get some thoughts on the list. It's not meant to be super competitive by any means, but I do like keeping things optimized with what I have.
Battalion Detachment: Order of the Penitent Sinners (Custom Order):
Hallowed Martyers (+1 to hit if under max unit strength), Shield of Aversion (Ignore Ap-1)
HQ
Canoness with Plasma Pistol & Blessed Blade: 65pts
Relic: Blade of Saint Ellyonr, WT: Righteous Rage (Re-roll hits and wounds in melee)
Taddeus the Purifier: 55pts
Troops
10 Battle Sisters Squad with x2 Meltagun, Combi-Melta, Power Sword, Simulacrum, Cherub: 155pts
10 Battle Sisters Squad with Heavy Bolter, AC Storm Bolter, Cobi-Plasma, Chainsword, Simulacrum: 140pts.
10 Sisters Novitiate Squad: x2 Ministorum Flamer, Plasma Pistol, Power Sword, Sacred Banner, Simulacrum: 105pts.
Elite
5 Celestian Sacresants with x4 Hallowed Maces, Spear of the Faithful: 75pts.
Pious Vorne: 30pts
Dogmata: 65pts
WT: Indomitable Belief (6" Aura +1 Invul)(1CP) Relic: The Sigil Ecclesiasticus (Extra Hymn, can intone two)(1CP)
Transport
Immolator with Twin Immolation Flamers: 130pts.
Heavy Support
Exorcist with Exorcist Missile Launcher: 180pts.
Total: 1000 Points
The idea is to have the Exorcist and the Bolter Sisters hold the backfield while moving up the Immolator/Sacresants/Taddeus to take on Elite Infantry, The Novitiate and Vorne with protection of the Dogmata's Litany of Enduring Faith to take on Light infantry, and the Canoness and Melta Sisters to go after anything big.