Ramuh Belt is an accessory found in Kingdom Hearts: Final Mix. It actually increases the Thunder Magic attacks of any character it is equipped on, as well as providing two extra AP.

Kingdom Hearts
Stats
HP MP AP EXP
0 0 2 +0%
Strength Defense
+0 +0
Resistance
Fire Blizzard Thunder Dark
+0% +0% +0% +0%

Background

Ramuh (pronounced Rah-moo) is one of the lightning magic-based summons in the Final Fantasy series, most notably appearing in Final Fantasy VII.