You can use your stomp psi-like ability more often.
Prerequisites: Half-giant, stomp racial trait.
Benefit: You can use the stomp granted by your half-giant heritage three times per day.
Normal: A half-giant’s stomp can be used once per day.
Special: You can take this feat multiple times. Each time you take it, you gain two more daily uses of your stomp psilike ability.
Source: Complete Psionic, page 55.