What does the Dark Soul actually do?

Surprisingly The Dark Soul is a pretty important aspect of the Dark Soul trilogy, but we really don't know too much about it. I have decided to take up the task of making my own Dark Soul Lore video trying to explain the different functions and abilities of The Dark Soul ~~Other Good Videos~~ Playlist of videos about living in Dark Souls/Elden Ring/Bloodborne: https://www.youtube.com/playlist?list=PLDlSO_4BANFstAqu5BLiuCtM9ec1X4ujf Video about the legendary Giantdad Build: https://www.youtube.com/watch?v=y-c4M2PgnME&t=263s EPIC video about Petrus of Thorolund: https://www.youtube.com/watch?v=XTHJJSead0A ~~Music Used~~ Main theme from Balatro Baroque from Old School Runescape Graze the roof from Plants vs Zombies Choose your Seeds from Plants vs Zombies A moments peace from Dark Souls 1 Braniac Maniac from Plants vs Zombies Ash Lake from Dark Souls 1 ~~TIMESTAMPS~~ 00:00 INTRO 01:07 Widely Known Functions 03:40 How to acquire the Dark Soul 05:03 What if YOU had the Dark Soul 08:26 Summary and Outro onebadmushroom one bad mushroom OBMushroom Dark Soul Lore Bloodborne Elden Ring