I like these!
I've actually been working on updating my fandex for 8th now that codexes are out (and I finally have one to compare to), so I've been thinking about this a bit.
There are some basic things that are obvious, like the 1cp/3cp for one/two more relics, plus a Canoness Superior (3cp) to upgrade a Canoness to re-roll hits in 6". Maybe the Only in Death Does Duty End stratagem (since the name was stolen from sisters anyway).
One obvious place to start for new stratagems is to recreate some of the old formation/squadron abilities.
I was thinking of a set of 2cp stratagems requiring multiple nearby units with a PURGE TEAM keyword to fire at the same target in order to bolster specific types of weapons (bolters, flamers, meltas) and also one for all three (holy trinity). PURGE TEAMS are Battle Sisters, Celestians, Dominion, Retributors and Immolators. Not completely concrete on the effects yet but I was thinking:
- Bolter Benediction: Three PURGE TEAM units required, hit rolls of 6+ with bolters inflict two hits instead of one.
- Wall of Fire: Two PURGE TEAM units required, improve Strength and AP of flamers by 1.
- Purgation: Two PURGE TEAM units required, melta weapons that hit inflict D3 Mortal Wounds instead of dealing ordinary damage (so less potential damage, but you get to bypass high Toughness and/or invulnerable saves).
- Holy Trinity: Three PURGE TEAM units required, improve Strength of bolter, flamer and melta weapons by 1 (so everything but plasma really).
This gives a cool dynamic of units working together to get as much out of your command points as possible.
Some others would be 1cp Inferno Bolts and Holy Promethium as single-unit boosts. I was thinking Inferno Bolts would improve
AP by 1, and Holy Promethium would let you roll an extra
D6 for shots fired, discarding lowest. You'd obviously get most value out of these on units optimised for it, so big Battle Sister squads or Dominion/Retributors with max flamers.
These are just some of the ideas I'm working with
atm, no eta on when I'll have a first draft of the list yet.