Duke Sucellus

If you wish to continue killing Sucellus after using up all of your Arder-musca poisons, run towards one of the mushroom spawns to immediately prepare picking them, as he will "respawn" shortly before one of them is reached.

When picking up drops, be mindful of mist rune and chaos rune drops if using the Arceuus spellbook, as these will cause other spells to become available, such as Vile Vigour and medium-tier thralls, potentially causing problems with muscle memory when spellbook filtering is enabled. These should be left on the ground until the trip concludes.