101Leafy researched the games.
Death Stench Heart

Cursed to bring about death. The black god himself appears before the dying...
Armor made from Elder Dragon bones and from sinister cloth that explorers bring back from unexplored lands. As its name says, it carries a smell of "death." It is sometimes decorated with the skull of a long-dead master, and many hunters loathe using it. Because it lets the wearer get close to monsters without being noticed, some have called it armor possessed by the god of death.
Our translation of 復刻 ハンター大全 (KADOKAWA / Enterbrain, 2014), page 195.
| Part | Body |
|---|---|
| Type | Gunner |
| Rarity | 5 |
| Defense | 20 |
| Fire Res | +3 |
| Water Res | +2 |
| Thunder Res | +2 |
| Ice Res | 0 |
| Dragon Res | +1 |
| Slots | 1 |
| Table price | 5,800z |
Listed in the equipment tables of モンスターハンターポータブル 2nd G 公式ガイドブック (Enterbrain, 2008), page 881.
Skill points
Materials
Sinister Cloth ×2, Striped Skin ×3, Unknown Skull ×3, Eldr Dragon Bone ×3