Planar Companion

Prerequisite(s): Kineticist 5, elemental focus class feature (air, earth, fire, or water), ability to summon creatures with a spell-like ability or access to an animal companion, eidolon, or familiar.

Benefit(s): Creatures you summon receive a subtype matching your elemental focus. This also applies to any animal companions, eidolons, or familiars you control.

Creatures that already have that subtype instead gain an additional 1 hit point per hit die they possess.