[silhouette]

I think Arco priestesses are under-used in communions. Make a handfull of crystal and slave matrices and setup the communion as normal, and use slave mx on some more cheap priestesses to enlarge the communion. Instant flexibility -- you can switch them to masters with the crystal mx instead and turn the communion upside down so it can lead with multiple H5+ casters for a surprise Banish/Smite/Maggots party vs undead. Even one H4+ master in communion for Fanaticism and Divine bless can be worth including full time in the team, plus the nature path buffs for slaves such as Eagle Eyes, Elemental Fortitude, Personal Regen, etc. At higher research levels, simple priestess masters have pretty big guns like Charm, Relief, Mass Regen/Protection, Howl.