You can pretend that she magically 'sheathed' it in the ground instead :P<br/>EDIT: Like if someone other than Selene tried to pull it out, it might come out but it would come out with a sheath around the blade that they would then have to remove before they could use it to deal lethal damage. I just generally figure that Selene's Kensai really doesn't like cooperating with people who aren't Selene or Selene-approved.<br/><br/>I imagine she can magically manifest it's sheath & that's how it deals blunt damage.