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Mountain Buster is a pet spell from Final Fantasy XIV used by the Summoner Summoner's Titan-Egi when commanded by Egi Assault II Egi Assault II, dealing area of effect damage. It is the upgraded form of Topaz Carbuncle's Shining Topaz Shining Topaz.

Mechanics[]

Mountain Buster SMN from Final Fantasy XIV icon Mountain Buster
Titan-Egi
Spell
Pet action
Effects
  • Executed when commanded by Egi Assault II Egi Assault II
  • Deals magic earth damage to nearby enemies
Traits
Interactions
  • Ruin II Ruin II: Replaced by Ruin IV Ruin IV while under the effect of Further Ruin
  • Devotion Devotion: Increases damage dealt by 5% for duration
Base damage formula:

Use[]

Mountain Buster is Titan-Egi's Assault II action, dealing area of effect (AoE) damage to nearby enemies. Mountain Buster is the strongest Assault spell available to any Summoner pet—compared to its Assault II counterparts, it boasts the same potency but deals all of its damage in a single hit unlike Garuda-Egi's Slipstream Slipstream, and doesn't suffer the damage dropoff of Ifrit-Egi's Flaming Crush Flaming Crush.

In short AoE encounters, quickly switching to Titan-Egi for a couple quick Mountain Busters can provide the strongest burst damage of any Egi. However, Titan-Egi suffers from low damage output otherwise, and prolonged use of Titan-Egi will result in a DPS loss. If an AoE encounter is expected to last longer much longer than the duration of a single Slipstream, keeping Garuda-Egi on the field will provide better overall DPS. In single-target encounters, Mountain Buster has no niche over Flaming Crush and Ifrit-Egi's greater overall single-target damage.

Patch history[]

Version Changes
A Realm Reborn Added with 70 potency, 4-yalm radius, increased enmity, and 15 second recast. Required level 15.
Dealt unaspected blunt damage.
Would be used automatically by the pet in combat unless set to Obey or Steady.
Level 24 trait Enhanced Pet Actions Enhanced Pet Actions gave Mountain Buster a 20% of granting Spell Speed Up Spell Speed Up whenever it dealt critical damage, increasing spell speed by 20% for 8s.
Heavensward Radius increased to 5 yalms.
Damage type changed to magic earth damage.
Stormblood Enhanced Pet Actions removed.
Level 62 Summoner trait Ruin Mastery Ruin Mastery added, which gave Mountain Buster a 15% chance to grant Further Ruin Further Ruin, upgrading Ruin Ruin and Ruin III Ruin III to Ruin IV Ruin IV.
Summon II Summon II no longer available in PvP, and by extension Titan-Egi and Mountain Buster.
Patch 4.1 Ruin Mastery effect changed, no longer interacts with Mountain Buster; replaced with Enhanced Ruin II Enhanced Ruin II, which had the same function but now upgraded Ruin II Ruin II to Ruin IV, rather than Ruin and Ruin III.
Shadowbringers Increased enmity removed.
Now only executed when the player uses Egi Assault II Egi Assault II. Required level increased to 40.
Enhanced Ruin II effect changed, no longer interacts with Mountain Buster; replaced with Enhanced Egi Assault Enhanced Egi Assault, which has the same function but now always activates.
Patch 5.1 Potency increased to 250.
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