To acquire the Dark Wood Grain Ring in Dark Souls 1, first, you need to join the Forest Hunter Covenant. This will allow you to encounter the ninja bodyguard, who can be located in either Darkroot Garden or Blighttown, positioned behind Shiva of the East. Once you find the bodyguard, you must defeat him in battle, which will result in the drop of the coveted Dark Wood Grain Ring. However, be aware that this action will sever your ties with the Forest Hunter Covenant.

Equipping the Dark Wood Grain Ring grants players the ability to perform a unique and agile roll, known as the “ninja roll,” which resembles a swift cartwheel flip. This enhanced evasive maneuver is only achievable when your total equip load is 25% or less, allowing for increased mobility in encounters throughout the game.