101Leafy researched the games.
Aqua Spear+

Piscine adds elemental effect. Shoots pressurized water from its cutting edge.
| Class | Lance |
|---|---|
| Rarity | 6 |
| Attack | 391 |
| Water | 400 |
| Slots | 1 |
| Price | 50,000z |
Upgrades
| Upgraded from | Aqua Spear |
|---|---|
| Upgrades into | Emerald Spear |
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 746.