Spawns in only one of the seven zones below 48-72 hours after being defeated, or 20-25 hours after using Doomvoid, with a strong preference for approximately 23 hours. Despawns after 1 hour if left unclaimed, and respawns in a random zone after 1-3 hours.
Doomvoid can be used under 40% HP. As with any monster, under 25% HP Sandworm will use an ability immediately upon reaching 1000 TP. Doomvoid will pull all alliance members in range into another zone.