101Leafy researched the games.
White Catastrophe

A Lance that can part rivers. Wyvern's blood is unable to stain its beauty.
| Class | Lance |
|---|---|
| Rarity | 7 |
| Attack | 460 |
| Water | 240 |
| Affinity | 10% |
| Slots | 2 |
| Price | 85,000z |
Upgrades
| Upgraded from | White Disaster |
|---|
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 750.