Spectral Form

At 14th level, you gain the ability to become a ghostly figure of psionic energy. As an action, you can transform into a transparent, ghostly version of yourself. While in this form, you have resistance to all damage, move at half speed, and can pass through objects and creatures while moving but can't willingly end your movement in their spaces. The form lasts for 10 minutes or until you use an action to end it.

Once you use this feature, you can't use it again until you finish a long rest.