101Leafy researched the games.
Ultimus Heaven&Earth

Named for the ultimate fear one feels approaching a great wyvern.
| Class | Dual Blades |
|---|---|
| Rarity | 8 |
| Attack | 280 |
| Dragon | 300 |
| Slots | 1 |
| Table price | 100,000z |
Upgrades
| Upgraded from | Dual Dragon Ultimus |
|---|---|
| Upgrades into | Dual Dragon Ultimus+ |
Upgrade tree from 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 714.