地獄の爪 / じごくのつめ [jigoku no tsume] or 'hell claws' in Japanese.
Final Fantasy III

Stats: ATK 121, ACC 100, VIT +5, weight 0, inflicts Poison
Use: ONK, MNK, BLB
Treasure: Ancients' Maze
Type: H2H
Final Fantasy IV
Stats: ATK 5, ACC 95, STA +4
Equip: Yang
Buy: - (sell: 325 gil)
Treasure: Tower of Zot 5F
Other: chance to poison opponent
Airborne Brigade

SSR+
Type: Fist, Element: -, Growth: Slow, Cost: 42
Attack: 17,380 (lv1), ? (lv200), ? (lv230), ? (lv260), ? (lv290), ? (lv320)
Defense: 17,370 (lv1), ? (lv200), ? (lv230), ? (lv260), ? (lv290), ? (lv320)
Obtain: ?
SSR
Type: Fist, Element: -, Growth: Slow, Cost: 33
Attack: 12,350 (lv1), ? (lv200), ? (lv220), ? (lv240), ? (lv260), ? (lv280)
Defense: 12,360 (lv1), ? (lv200), ? (lv220), ? (lv240), ? (lv260), ? (lv280)
Obtain: ?
Category: Equipment