Post here whether or not you agree, but here is the proposal.
Give Ret a 2 point model (character or not is up to PP) that has the following rule:
Guidance (★Action) - Range 5", if the target friendly faction model is in range, it gains Eyeless Sight and all its weapons are magical for one turn.
If it looks familiar, it is a rule on the Skorne Extoller Soulward. The solo can be a totally different type of solo from the Extoller Soulward.
Please PP, give us our own "Vassal of Menoth", and let it have this rule. It would single handily make Retribution the competitive faction it needs to be.