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Thunder II is a Thaumaturge Thaumaturge and Black Mage Black Mage spell from Final Fantasy XIV that deals area of effect (AoE) damage and additional damage over time. It is upgraded to Thunder IV Thunder IV at level 64.

Mechanics[]

PvE version
Thunder II from Final Fantasy XIV icon Thunder II
ThaumaturgeBlack Mage Thaumaturge/Black Mage 26
Spell
Class action
Effects
  • Deals magic lightning damage to target and nearby enemies
  • Inflicts Thunder II Thunder II for 12 seconds, dealing additional damage every 3 seconds
  • Only one Thunder effect of any level per caster can be inflicted upon a single target
  • Activates the global cooldown
Interactions
Traits
Base direct damage formula:

Where Potency can be 150 with Thundercloud or 30 without; Trait can be 1.1 with Maim and Mend or 1.3 with Maim and Mend II.
Base damage over time formula:

Where trait can be 1.1 with Maim and Mend or 1.3 with Maim and Mend II.
Cast time formula:
Recast time formula:
PvP version
Thunder II PvP from Final Fantasy XIV icon Thunder II
PvPBlack Mage Black Mage 30
Spell
Job action
Effects
  • Deals magic lightning damage to target and nearby enemies
  • Inflicts Thunder II Thunder II for 15 seconds, dealing additional damage every 3 seconds
  • Grants Thundercloud Thundercloud for 10 seconds if target is dealt over 4000 points of damage while under the effect of Thunder II
  • Thunder II effect is removed upon gaining Thundercloud
  • Only one Thunder effect of any level per caster can be inflicted upon a single target
  • Activates the global cooldown
Interactions

Use[]

Thunder II is used to deal damage over time (DoT) to multiple enemies. It should always be applied as soon as possible against a target to maximize its effects. Against weak enemies expected to die in less time than its duration it may be safely skipped. Thunder II is best used during the Umbral Ice state, as the MP it consumes will not regenerate in the Astral Fire state and it doesn't benefit from the state's damage increase.

Only one Thunder spell-induced damage over time effect per caster can be inflicted upon a single target, preventing Thunder II from stacking with Thunder Thunder or Thunder III Thunder III.

DoT effects deal damage every server tick, or 3 seconds, independent of the effect's duration. This means that the effect may deal damage anywhere between 0 and 3 seconds after it is applied, and in 3 second intervals afterwards. In order to maximize efficiency on damage over time effects, it is generally recommended to reapply them with under 3 three seconds remaining, as the final tick of damage from the effect can occur anywhere in that window. This may result in the loss of a tick, but waiting for the effect to drop off before reapplying can result in the loss of two or more ticks and greater DPS loss.

The Thundercloud Thundercloud trait grants each damage tick of Thunder II a 3% chance to grant the Thundercloud Thundercloud status. The status causes the next Thunder spell of any grade to add its full DoT amount to its initial damage, have no cast time, and cost no MP. With Thundercloud active, Thunder II becomes one of the more powerful AoE spells available to a Black Mage, particularly at lower levels. Despite this Black Mages shouldn't use a Thundercloud Thunder II until either the previous DoT or Thundercloud itself are about to run out in order to maximize the damage of the previous DoT. Sharpcast Sharpcast will guarantee a Thundercloud proc on the next Thunder spell used, and it is generally preferable to use it in this manner than for the other effects it provides.

As Thunder II has a cast time longer than the global cooldown (GCD), it can pair well with Swiftcast Swiftcast. Once Flare Flare is acquired Swiftcast should be used with that instead.

PvP[]

In PvP Thunder II is instant cast with no MP cost. Thundercloud now activates whenever afflicted enemies takes over 4000 damage while under the effect of Thunder II, which also ends the DoT effect. Thundercloud is now part of the base ability, and its effect is changed to instead replace Thunder Thunder and Thunder II with the powerful Thunder III Thunder III and Thunder IV Thunder IV. Thunder II's damage threshold to activate Thundercloud is lower than that of Thunder, allowing Black Mages to more easily activate Thundercloud without needing to focus on a specific target.

As an instant cast spell that activates the global cooldown (GCD), Thunder II can be used to weave abilities that are off the global cooldown (oGCD), such as Enochian Enochian, in between spellcasts.

Patch history[]

Version Changes
A Realm Reborn Added with 50 initial potency, 40 DoT potency, 12% base MP cost, 21s duration, and only affected a single target.
Applied the same Thunder Thunder status as other Thunder spells and could not stack with them.
Was learned at level 22.
Thundercloud Thundercloud had a 5% chance to activate after each damage over time tick inflicted by any Thunder spell and had a 12s duration.
Had a base potency of 295 under the effect of Thundercloud.
Patch 3.05 DoT potency increased to 40.
Thundercloud activation chance increased to 10%.
Base potency while under the effect of Thundercloud increased to 330.
Stormblood Level learned increased to 26.
Now affects all enemies in a 5y radius of the target.
Base potency lowered to 30.
DoT potency lowered to 30.
DoT duration lowered to 12s.
Each Thunder spell now inflicts their own unique status, but these statuses still cannot stack.
Thundercloud activation chance reduced to 3% for Thunder II.
Base potency while under the effect of Thundercloud reduced to 150.
No longer available in PvP.
Patch 4.2 Thundercloud duration increased to 18s.
Shadowbringers MP cost set at 400 with MP system overhaul.
Patch 5.1 New PvP exclusive version added. See below for its patch history.
PvP version
Version Changes
Patch 5.1 Added with a 1.5s cast time.
Patch 5.3 Cast time reduced to instant.

Gallery[]

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