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Mad Bone Horn I

Hunting Horn · Monster Hunter World: Iceborne

Mad Bone Horn I

A hunting horn made of only the rarest bones. Powerful enough to pulverize steel.

Equip this weapon in the Builder

Stats

Attack
966
Affinity
0%
Rarity
9
Slots
3
Element
Ice 270 (hidden)
Defense
+35
Notes
P R C
Sharpness
Red 110 · Orange 100 · Yellow 40 · Green 50 · Blue 50 · White 50

Melodies

Horn notes

  • Self-improvement

    Movement Speed Up · Attack Up + Deflected Attack Prevention

    Lasts 180 s, extension +90 s

  • Attack Up (L)

    Attack Up (L) · Attack Up (XL)

    Lasts 90 s, extension +30 s

  • Earplugs (S)

    Earplugs (S) · Earplugs (S) Extended

    Lasts 180 s, extension +120 s

  • Scoutfly Power Up

    Scoutfly Level +1 · Scoutfly Level +1 Extended

    Lasts 180 s, extension +180 s

  • Envir. Damage Negated

    Envir. Damage Negated · Envir. Damage Negation Extended

    Lasts 120 s, extension +120 s

  • Muck/Water/Deep Snow Res

    Muck/Water/Deep Snow Res · Muck/Water/Deep Snow Res Extended

    Lasts 180 s, extension +180 s

Upgrade path

Crafting materials

Total cost of Mad Bone Horn I: it comes from a 9-step upgrade chain, and crafting the final weapon means going through all of them. The total below sums the whole tree.

Materials total

Each material appears once, under its main source: monster, then gathering, then combining.

Dropped by monsters (11)

  • Quality Bone ×36Radobaan (carve), Kestodon (reward), Girros (reward) · also: gathering
  • Monster Hardbone ×14Black Diablos (reward), Diablos (reward), Odogaron (reward) +8
  • Monster Keenbone ×8Paolumu (reward), Barroth (reward), Raphinos (reward) +8
  • Monster Bone M ×7Barroth (reward), Tobi-Kadachi (reward), Jyuratodus (reward) +1
  • Monster Bone+ ×4Great Jagras (reward), Kulu-Ya-Ku (reward), Tzitzi-Ya-Ku (reward) +5
  • Sturdy Bone ×4Radobaan (carve), Kestodon (reward), Mernos (reward) +5 · also: gathering
  • Elder Dragon Bone ×4Kirin (reward), Nergigante (reward), Xeno'jiiva (reward) +4
  • Monster Bone S ×3Jyuratodus (reward), Kestodon (reward), Mernos (reward) +6 · also: gathering
  • Monster Bone L ×2Paolumu (reward), Tzitzi-Ya-Ku (reward), Anjanath (reward) +3
  • Ancient Bone ×1Kestodon (reward)
  • Dragonbone Relic ×1Radobaan (carve) · also: gathering

Gathered in the field (1)

Quest, delivery or event (2)

Materials per step

  1. 1.Bone Horn I (craft)

    Monster Bone S ×1

  2. 2.Bone Horn II (upgrade)

    Monster Bone S ×2

  3. 3.Bone Horn III (upgrade)

    Monster Bone M ×2, Ancient Bone ×1

  4. 4.Hard Bone Horn I (upgrade)

    Monster Bone L ×1, Monster Bone M ×5, Boulder Bone ×2

  5. 5.Hard Bone Horn II (upgrade)

    Monster Bone+ ×2, Monster Bone L ×1, Sturdy Bone ×4

  6. 6.Hard Bone Horn III (upgrade)

    Monster Keenbone ×2, Monster Bone+ ×2, Quality Bone ×2

  7. 7.Heavy Bone Horn I (upgrade)

    Monster Hardbone ×4, Monster Keenbone ×6, Quality Bone ×10

  8. 8.Heavy Bone Horn II (upgrade)

    Elder Dragon Bone ×4, Monster Hardbone ×6, Quality Bone ×20, Dragonbone Relic ×1

  9. 9.Mad Bone Horn I (upgrade)

    Thick Bone ×2, Quality Bone ×4, Monster Hardbone ×4, Frozen Bone ×1