Death strykewyrms can be found in the Wilderness, north of the Forgotten Cemetary. They can only be assigned by Kuradal or Radiver and have no other special requirements than a slayer level of 96. They are also the only monsters in RuneScape that drop the powerful Staff of darkness. Like all other strykewyrms, they can only be fought on assignments and are battled by investigating 'mounds'. Note, that these are in the wilderness, and PKers may surprise you by killing you, so it's suggested to bring equipment you don't mind loosing. Just like all other strykewyrms they have 4 primary attack styles, only they are stronger for these strykewyrms: