I’m not sure if this interaction is intended and wanted to flag it just in case.
Mithril Imler’s trait Spirit Link shares damage between all Imlers/Imlings. The damage is converted to trait damage when this happens.
Angelic Voidlord’s trait makes that creature immune to non-attack/spell damage.
A combo team of Mithril Imler/Angelic Voidlord and any other Imler or Imling/Angelic Voidlord seems to be immune from any damage at all from what I’ve (briefly) tested. Attacks -> Trait damage (immune), Spells -> Trait damage (immune), Debuffs -> Immune to the damage component, Other trait damage -> Immune.
Now this eats up a lot of trait slots/severely limits your team composition. It doesn’t leave much room for much else to increase your damage/utility, so maybe the trade-off is ok.