Antagonist [Host]

The psionic entity you host seeks to cause damage and mayhem, and you have powers to further that end.

Benefit: A psionic entity takes up residence within your flesh. The entity grants you the following psi-like ability:

Psi-Like Ability: 1/day⁠—​energy ray or crystal shard. Manifester level ½ your HD; save DC 11 + your Cha, Int, or Wis modifier.

Special: You can use one or the other of your entity-granted psi-like abilities once per day—you can’t use both. Once you use one, you can’t use the other for the rest of the day.

Source: Complete Psionic, page 60.