Would you say psionic tattoos are worth looking into for a PsyWar? I can see some potential here, but I'm not very experienced with the class, so maybe the veterans see more.
The Mantled PsyWar has access to 7th to 9th level powers on it's list.
(Has to use powerstones and a builder, to take advantage of this.)
The mantle allows more powers off list than Expanded Knowledge feat
s.
So technically a Mantled PsyWar with the usual batch of off list powers,
should "technically" have a few extra feat slots for the Two tattoo feats.
And PsyWar has more feat slots than a Psion.
So it should be possible to build a PsyWar that
doesn't try to do Psion-type things with the Tattoos,
yet is still quite the PsyWar. Maybe even improved !