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Thunder IV (サンダーIV, Sandā IV?) is a recurring ability in the series. The ability first appeared in Final Fantasy XI as a Black Magic spell, but has reappeared in certain spin-off titles as an ability for Final Fantasy XI-related characters and monsters.

Despite sharing the name in the English localization of Final Fantasy XIV, the abilities known as Thunder IV in the title are in fact the recurring Thundaja spell in Japanese.


Final Fantasy XI[]

Thunder IV
MP 195
Effect Deals lightning damage to an enemy.
Duration Instant
Casting Time 6 seconds
Recast Time 30 seconds
Magic Type Elemental Magic
Element Lightning
Jobs BLM 75, SCH 75*(Addendum: Black), GEO 91, RDM 92

Thunder IV is a tier IV Black Magic spell that deals lightning-based elemental damage to a single target. Thunder IV is available to Black Mages, Geomancers, and Red Mages. Scholars are also able to use this spell while under the effects of Addendum: Black or Enlightenment. Additionally, a Summoner's Thunder Spirit and certain setups of a Puppetmaster's Automaton are capable of casting this spell.

Scrolls of Thunder IV can be found as loot on certain high-level Magic Pots and Goblin black mages.

Blood Pact: Rage[]

Thunder IV
MP 118
Effect Deals lightning elemental damage.
Duration Instant
Casting Time Instant
Recast Time 60 seconds
Magic Type Blood Pact: Rage
Element Lightning
Jobs Ramuh 60

Thunder IV is a level 60 Blood Pact for Ramuh. It can be used when the Summoner or Ramuh (or both) is Silenced. Amnesia on either the Summoner or Ramuh prevents the use of Thunder IV. Ramuh's TP is consumed upon using this ability, boosting its power. However, TP is not needed to use this ability.

Pictlogica Final Fantasy[]

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Final Fantasy Brave Exvius[]

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Thunder is the sound caused by lightning. Depending on the distance and nature of the lightning, thunder can range from a sharp, loud crack to a long, low rumble (brontide).