Umbral form

You can spend 6 sorcery points as a bonus action
to transform yourself into a shadowy form. In
this form, you have resistance to all damage except
force and radiant damage, and you can move
through other creatures and objects as if they
were difficult terrain. You take 5 force damage
if you end your turn inside an object. You
remain in this form for 1 minute. It ends early
if you are incapacitated, if you die, or if you
dismiss it as a bonus action.