You master fighting with Psi-Blades, gaining the following benefits:
- You gain a +1 bonus to Dexterity or Strength to a maximum of 20.
- You are so proficient with Psi-Blades you are always considered to have Psi-Blades ready. (e.g. they can be used for reactions or attacks of opportunity)
- Hitting a creature with Psi-Blades leaves it more susceptible to Psi damage giving a +1 damage bonus on next Psychic attack.