- Timed spawn around (G-3) of Abyssea - Konschtat 15-20 minutes after defeat.
- Does not aggro nor is it initially targetable. Becomes aggressive and targetable after bringing one of the NMs Guimauve, Bloodguzzler, or Lentor next to it. Fistule will use Dissolve on the NM, instantly killing it, and will start to attack.
- Please note that the player that has hate on the "sacrificed" NM while being pulled into Fistule will be the one that may obtain the Turbid Slime Oil key item upon Fistule's defeat.
- Spawns two smaller Pustule mobs when it uses Cytokinesis. Cytokinesis will be used at every 1/6th of Fistule's HP (83%, 66%, 49%, 33%, 16%), regardless of TP.
- Pustules will not be popped again upon the next Cytokinesis if the previous ones are still alive.
- If a Pustule is defeated or left alive for 5 minutes, it will fall to the ground and spawn two more Pustules in its place. If 5 minutes pass and the Pustule(s) are attacking at this time, they will use Fluid Spread before dividing.
- Pustules can be kited and eventually deaggroed if the kiter maintains enough distance. Movement speed gear/atma is helpful for this.
- If the Pustules are deaggroed, they will attempt to slowly make their way back to Fistule's location. If they get close enough, they will link and resume attacking.
- If the Pustules are pulled far enough south from Fistule's spawn location, they will despawn completely if deaggroed.
- Pustules can be triggered, with different weaknesses than Fistule. Whether this affects drops is unknown.
- Primarily uses Giant Clot special attacks:
- Dissolve: Conal HP drain. Deals approximately 800 damage (reduced by Shell) and resets hate on its current target.
- Epoxy Spread: AoE Bind.
- Mucus Spread: AoE Slow. Overwrites and blocks Haste.
- Cytokinesis: AoE damage, strong Weight effect, and knockback. Spawns 2 Pustules, unless previous Pustules have been left alive. Used once at every 1/6th of Fistule's HP.
In medicine, a fistule or fistula (pl. fistulas or fistulae) is an abnormal connection or passageway between two epithelium-lined organs or vessels that normally do not connect. It is generally a disease condition, but a fistula may be surgically created for therapeutic reasons.