101Leafy researched the games.
Babel Spear

Named for the legendary tower, this Lance is truly a treasure to behold.
| Class | Lance |
|---|---|
| Rarity | 7 |
| Attack | 529 |
| Defense | +20 |
| Slots | 2 |
| Price | 55,000z |
Upgrades
| Upgraded from | Knight Spear |
|---|---|
| Upgrades into | Lost Babel, Sadalsuud, Spark Plug, Ancient Destroyer |
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.