サンダーストーム [thunderstorm] in Japanese.
Final Fantasy III
Target: single, Element: Lightning, Power: 193
Use: randomly activated when casting Spark on Evoker or Sage
Effect: deal a fairly large amount of lightning element damage
Final Fantasy XI
Type: White Magic, Category: Enhancing, MP: 30
Learn at: SCH 51
Casting: 3 s, Recast: 15 s, Duration: 180 s
Buy: Layton/Eldieme Necropolis [S]
Description: Changes the weather around target party member to "thundery"
Airborne Brigade

R+
Type: INT, Element: Thunder, Growth: Slow, Cost: 16
Attack: 1,320 (lv1), ? (lv80), 7,594 (lv100), ? (lv120), ? (lv140), ? (lv160)
Defense: 1,330 (lv1), ? (lv80), 7,147 (lv100), ? (lv120), ? (lv140), ? (lv160)
Obtain: event: Saronia Castle Mysteries
R
Type: INT, Element: Thunder, Growth: Slow, Cost: 12
Attack: 930 (lv1), ? (lv60), ? (lv75), ? (lv90), ? (lv105), ? (lv120)
Defense: 920 (lv1), ? (lv60), ? (lv75), ? (lv90), ? (lv105), ? (lv120)
Obtain: event: Saronia Castle Mysteries

Faris I (SR)
Type: Legend, Element: Thunder, Growth: Normal, Charge: 54
Brave: 2,738 (lv1), 13,590 (lv240), 14,953 (lv270), 16,315 (lv300), 17,677 (lv330), 19,039 (lv360), ? (lv390), ? (lv420), ? (lv450), ? (lv480)
Ability: Thunderstorm
Obtain: event: Shattered World (green chocobo)
Category: Ability