I liked a Summon Swarm to be in there, just because you might be some place with No bugs, like the Plane Of Fire, or the Plane Of Vacuum.
minor detail, not important.
Psi recharge is always nice.
PsyWar 3 with the Moi set-up and a Cog Crystal to keep it all kosher, can heal up the party and put 10+ temp hp on himself every combat. It goes up.
Wilder 4 with the expansive version of Bestow Power, can do the same but with 30+ temp hp.
Technically, you could say this way gets All hit points covered, and then some. But it doesn't get much extra, relative to the stuff above this post.