Handbook
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Mother Sandworm

Game build s2 · f0b9aec · updated 26/10 New

Mother Sandworm is the band 8x field boss of Bone Desert (yellow zone), level 90, channel 1 only. Uses: Stack, Blast zone, Swallow.

Skills

Skill · signWhenNumbersHow to handle
Sand EruptionBlast zoneAlwaysradius 80 · 2.4 s warning · burrowsLeave the red zone before the rim fills.
QuicksandStackAlways—Whole party stands in the gold ring — damage is split between everyone inside.
Swallow WholeSwallowAlways1.5 s warningOne player is swallowed: burst the boss so it spits them out early.

“How to handle” comes from the sign. Numbers from game data, build s2. See the 6 signs →

Phase bar

No HP markers — the skill set stays the same all fight.

Rewards

  • Main chest (max 3 per player per day): 2–3 items ≥ Blue, each Purple 15% × tier factor (band 8x: × 0.4).
  • 10% one item becomes the signature Wormbelly Ring (Ring, fixed line HP, 1 socket).
  • 10% drops the Relic Sandworm Tooth (Monster Lifesteal + HP).
  • 20% chance of 1 extra Elixir of Knowledge (bound).
  • Yellow zone: no Red items.
  • Participation Chest (≥ 1% of boss HP): 1 item (no Red) + 10 × tier Mystic Iron — no daily cap.
  • Protection Charm 1% · Lucky Stone 8% · Boss card (HP) 1%.
  • Respawns after 40–70 min, channel 1 only. At night: HP + damage × 1.3.

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