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For example an egoist's:
Choose two powers from the following list: hammer, synesthete, thicken skin, and vigor. As long as you maintain psionic focus, you may manifest either of your chosen powers without paying a power point cost, but the power may not be augmented or affected by metapsionic feats. Add half your psion levels to the temporary hit points gained from vigor. Synesthete, thicken skin, and vigor last for a number of rounds equal to your psion level. The damage of hammer is reduced to 1d4 (rounds?).