Tri-disaster (Final Fantasy XIV)

Tri-disaster is a ability from Final Fantasy XIV that deals single-target damage while inflicting both Bio and Miasma.
==Mechanics==
{|class="article-table mw-collapsible" 	 	
PvE version 	PvE version 	PvE version
 	Tri-disaster 56 	AbilityJob action
Effects 	
*Deals unaspected magic damage
*Inflicts and for 30 seconds, dealing additional unaspected magic damage every 3 seconds 	
*Deals unaspected magic damage
*Inflicts and for 30 seconds, dealing additional unaspected magic damage every 3 seconds
Traits 	
*: Increases damage by 30%
*: Upgrades effects to and 	
*: Increases damage by 30%
*: Upgrades effects to and
Interactions 	
*: Deals increased damage to targets suffering from Bio and Miasma effects
*: Spreads Bio and Miasma effects to nearby enemies at 60% reduced potency
*: Increases damage dealt by 5%
*: Resets recast timer
*: Resets recast timer 	
*: Deals increased damage to targets suffering from Bio and Miasma effects
*: Spreads Bio and Miasma effects to nearby enemies at 60% reduced potency
*: Increases damage dealt by 5%
*: Resets recast timer
*: Resets recast timer
Base direct damage formula:Damage = \lfloor 150 * f(Intelligence_{DMG}) * f(Determination) \rfloor * f(Magic Damage) \rfloor * 1.3 \rfloor 	Base direct damage formula:Damage = \lfloor 150 * f(Intelligence_{DMG}) * f(Determination) \rfloor * f(Magic Damage) \rfloor * 1.3 \rfloor 	Base direct damage formula:Damage = \lfloor 150 * f(Intelligence_{DMG}) * f(Determination) \rfloor * f(Magic Damage) \rfloor * 1.3 \rfloor
Base damage over time formula:Damage = \lfloor Potency * f(Magic Damage) \rfloor * f(Intelligence_{DMG}) \rfloor * f(Spell Speed) \rfloor * f(Determination) \rfloor * 1.3 \rfloor +1Where Potency can be 30 for Bio II, 20 for Miasma, or 45 for Bio III and Miasma III.	Base damage over time formula:Damage = \lfloor Potency * f(Magic Damage) \rfloor * f(Intelligence_{DMG}) \rfloor * f(Spell Speed) \rfloor * f(Determination) \rfloor * 1.3 \rfloor +1Where Potency can be 30 for Bio II, 20 for Miasma, or 45 for Bio III and Miasma III.	Base damage over time formula:Damage = \lfloor Potency * f(Magic Damage) \rfloor * f(Intelligence_{DMG}) \rfloor * f(Spell Speed) \rfloor * f(Determination) \rfloor * 1.3 \rfloor +1Where Potency can be 30 for Bio II, 20 for Miasma, or 45 for Bio III and Miasma III.
Damage over time (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. 
==Use==
Tri-disaster deals instant damage to a single target and inflicts the user's strongest Bio and Miasma DoT effects on the target. Having both statuses in a single ability saves the Summoner from spending two global cooldowns (GCD) to inflict them with the usual Bio or Miasma spells, improving overall DPS. When accounting for the total damage dealt by the two DoT effects and Tri-disaster's own base potency, it is the most powerful single-target action in the Summoner's arsenal.
Tri-disaster's 50s recast is longer than the 30s duration of the statuses, forcing the Summoner too occasionally use the base spells to reapply the statuses between Tri-disasters. However, both and , learned at levels 58 and 72 respectively, reset the recast timer of Tri-disaster when used, further reducing the Summoner's reliance on the base spells.
Statuses inflicted by Tri-disaster benefit from all the same synergies as though they were inflicted by the regular spells, increasing the damage dealt by and potentially being spread to multiple targets by .
Tri-disaster is an instant cast ability that is off the global cooldown (oGCD). This allows players to weave it between global cooldowns after using instant cast spells such as , and is best saved for these situations in order to maximize DPS. It is even possible to double weave Tri-disaster with the aforementioned Fester or Bane within a single GCD.
In order to maximize efficiency on DoT 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.
===PvP===
Tri-disaster only inflicts in PvP due to the absence of Miasma spells. In exchange, it now also fills the Summoner's Aetherflow Gauge. With being a spell in PvP and the only other Aetherflow generator, this allows Tri-disaster to still save the Summoner the use of two GCDs.
Much like the PvE version, Tri-disaster has a long cooldown, necessitating the occasional use of the regular spell. Aetherflow is also only generated one at a time, so Tri-disaster can't be relied on as a Aetherflow generator, instead using the GCD Energy Drain to fill most of their gauge.
In PvP, Aetherflow is required to use , , and , in addition to and . Fester, Bane, and the Trances all retain their usual synergies with Tri-disaster.
== Patch history ==
Version 	Changes
Heavensward 	Added with a 60s recast.Inflicted , , and with 18s, 30s, and 24s durations respectively.Bio and Bio II were distinct statuses at the time rather than Bio II being the upgraded form of Bio.
Stormblood 	Bio and Bio II statuses made mutually exclusive as Bio II now replaced Bio. Due to level restrictions, Tri-disaster can no longer inflict Bio.Level 66 trait added, upgrading Bio II to Bio III and Miasma to Miasma III.Tri-disaster inflicts the strongest versions of Bio and Miasma available, and thus inflicts Bio III and Miasma III when this trait is active.Tri-disaster now inflicted in addition to Bio and Miasma. Ruination increased potency of Ruin spells against affliced enemy by 20.All Bio and Miasma effects had 30s duration while Ruination had only a 15s duration. now resets Tri-disasters recast.No longer available in PvP.
Shadowbringers	Recast time reduced to 50s.Ruination now also increased potency.Ruination no longer increased potency of Ruin spells used by s.Level 72 trait added, allowing to spread Ruination to nearby enemies.Level 76 trait added, increasing Ruination's duration to 30s. added, also resetting Tri-disaster's recast like Dreadwyrm Trance.
Patch 5.05 	Delay before statuses are applied reduced.
Patch 5.1 	No longer inflicts Ruination.Now dealt unaspected damage with 300 potency.New PvP exclusive version added. See below for its patch history.
Patch 5.3 	Potency reduced to 150.
Version 	Changes
Patch 5.1	Added.
==Gallery==
FFXIV ARR Tri-bind.png|2.0 version.
FFXIV Tri-disaster.png|3.0 - 5.0 version.
Category:Summoner actions in Final Fantasy XIV