101Leafy researched the games.
Majestic Horn
Japanese name: 上質なねじれた角 (Monster Hunter Portable 2nd G official guidebook, Enterbrain, 2008, pp. 954–1045).
High-quality horn from a Diablos. Used to make strong weapons.
From the guide book
Breaking parts
Some monsters have parts that break once their durability has been brought to 0 a set number of times. Breaking a part can shorten the tail or stop the monster from using some attacks, and it also earns special rewards when the quest is cleared, so try breaking all sorts of parts.
Our translation of the Monster Hunter Portable 2nd G official guidebook (Enterbrain, 2008), p. 139.
| Rarity | 5 |
|---|---|
| Carry limit | 99 |
| Buy | 24,000z |
| Sell | 2,400z |
From monsters
| Monster | Method | Rank | Chance |
|---|---|---|---|
| Black Diablos | Part break reward | Low rank | 15% |
| Diablos | Part break reward | Low rank | 8% |
| Black Diablos | Part break reward | High rank | 32% |
| Diablos | Part break reward | High rank | 20% |
| Black Diablos | Part break reward | High rank | 18% |
Quest rewards
| Quest | Count | Chance |
|---|---|---|
| The Runaway Diablos | 1 | 7% |
| The Fierce Black Horn | 1 | 7% |
| The Runaway Diablos | 1 | 5% |
| The Fierce Black Horn | 1 | 5% |
Chance per draw from the main reward box in the game's quest file.
Used to make
Diablo SpearSpiked BatDual Diablo+White DisasterDiablo DestroyerDiablo Chaos BrokerDuelcasterDuelcaster+Quickcaster+Diablos Horn Bow IDiablos Horn Bow IIAuroros HelmGenesis HeadpieceBorealis CrownGlyph CrownDiablo Helm UDiablo Cap UDiablo Helm SDiablo Cap SDiablo MailDiablo VestDiablo Mail UDiablo Vest UDiablo Mail SDiablo Vest SDiablo Vambraces UDiablo Guards UDiablo Vambraces SDiablo Guards SSwordsman Jewel