[Chazar]

The battle has happened, and I learned the following:

• Communions Slaves seem to be able to cast spell as usual, at least if they cast "Communion Slave" before any master does: The slaves benefitted from their master's spells (Mistform, Astral Shield, etc.), yet all seraphs with slave matrices continued to cast two spells per round (false horrors as scripted, then ghost wolves) and one out of three lizard shamen (the independent ones, but seem identical to the Ctis shamen) was also casting twice per round (quickness gained from communion master). The two other lizard shamen were standing by idle on the flanks and did nothing (scripting was identical for all: communion slave, curse, healing lights, healing lights, healing lights). The only difference I could see was that they casted the communion slave at the end of the first round, while their active brother was standing in the middle and casted at the beginning. He forfeited his script because there were no wounded units and casted buffs like body ethereal (which was later casted by a master). All three lizard shamen were placed inside of a dozen of Caelian Blizzard Warriors (Archers).
• CopperPlate & MasterMatrix yields charged body icon to all SlaveMatrix holders. Likewise, the animation of Storm from Staff of Storms is displayed at all SlaveMatrix holders as well. So this bug is not yet fixed in V2.14 (the game runs V2.14)
• EDIT: Thanks to ckfnpku for pointing out! I got this one wrong: Body ethereal does not provide the ethereal icon. It is displayed, but body ethereal is an area spell and thus is not transferred. In addition, my stupid mages rather etherealized a vine ogre and a caelian scout instead, which I didnt notice. These mages are so clever!
• Fatigue of the slaves was around 12 at the end of a 4 round battle, but no high-fatigue spells were cast, since the enemy was too weak (25 flagellants and 9 manikins only against strong casters, plenty of archers & strong summons (iron dragon, etc.)). Nothing learned here yet.

Hmm, with the exception of the Last, I'd say that the others smell buggy to me!