Yesterday's post about how to deal with Nova Casters reminded me of a houserule I haven't whipped out in a while. Houseruling is, and will always be, my favorite form of conflict resolution, for better or worse. I made this rule when I noticed a pesky kineticist was out-damaging the rest of the party combined (and there was a druid in that party, so I knew something was up). I designed this rule so that it wouldn't stop a psionic character from being effective (especially at low levels' note that the average 1st-level psion needs to blow all her power points in one minute to risk psychic shock), but to put some mechanism in place to stop psionics from being such a nova party. Without further ado, psychic shock.
Psychic Stability [Psionic]
Your mind is unusually resistant to psychic shock.
Benefit: You gain a +4 bonus on manifester level checks to resist psychic shock.
Stable Power [Metapsionic]
You can manifest powers that do not disrupt your psychic equilibrium.
Benefit: To use this feat, you must expend your psionic focus (see the Concentration skill description, Expanded Psionics Handbook, page 37). You can manifest a power as a stable power. Power points expended on a stable power do not count when you determine whether you have surpassed your shock threshold.
Using this feat increases the power point cost of the power by 2. The power’s total cost cannot exceed your manifester level.