Talk:Excalibur/@comment-68.115.106.130-20180617122746

A couple other things:

Excalibur Umbra and his sword Skiajati are both unsellable, making them the only weapon and warframe that cannot be sold.

The Umbra Polarity is not polarizable even to Umbra or his blade, so if they are removed with a forma they can't be created again.