Board Thread:Online Play Board/@comment-71.11.73.250-20171008113731

I'm trying to get the moonlight greatsword via cutting Seath's tail, however me being a sorcerer build, it's near impossible, I'm also scared to summon in fear of the person helping just massacring Seath before I can get the tail cut, not that I'm able to find any summon signs either though, anyways if anyone could help that'd be great (Xbox 360) 