101Leafy researched the games.
Tigrex Sword

Replica of a Tigrex claw. One swing pulverizes the world with an enormous roar.
| Class | Sword |
|---|---|
| Rarity | 7 |
| Attack | 308 |
| Affinity | -25% |
| Slots | 0 |
| Price | 80,000z |
Upgrades
| Upgraded from | Rex Talon |
|---|---|
| Upgrades into | Tigrex Sword+ |
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 706.