Displacement (kamui)

Pass through Solid Objects

Attacking and casting a spell deactivate's the spell 

If the spell deactivates while in a solid object the caster must roll a dex save of 12 or higher to avoid one d20 of force damage

Your character becomes completely Intangible, able to walk through walls and becoming completely invisible. You can not be harmed (enemy may find you with  a 17 or higher perception check. You are still affected by radiant damage) in this form.