101Leafy researched the games.
Executioner

A Bone Axe with an enormous head. More likely to smash a skull than cut it off.
| Class | Great Sword |
|---|---|
| Rarity | 4 |
| Attack | 816 |
| Slots | 0 |
| Price | 4,250z |
Upgrades
| Upgraded from | Golem Blade+ |
|---|---|
| Upgrades into | Executioner+, Kirin Thundersword, Sword of the Diablos, Agito |
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 680.
Materials
Plus Class Tcket ×1, Hercudrome ×1, Monster Bone+ ×1