Final Fantasy X / X-2 - Yunalesca Boss Guide

A boss guide for Yunalesca in Final Fantasy X including the boss' stats, attacks, and strategies for defeating her.

FFX Yunalesca Boss Guide

Yunalesca Boss Information

Stats

HP 24,000 / 48,000 / 60,000 (10,000 Overkill)
MP 500
Strength 20
Magic 30
Defense / Magic Defense 50 / 50
Agility 40
Accuracy 0
Evasion 1
Luck 20
AP 14,000 (21,000 Overkill)
Gil 9,000
Weakness Holy
Strong Against None
Absorbs None
Immunity Silence, Sleep, Darkness, Poison, Petrify, Slow, Zombie, Power Break, Magic Break, Armor Break, Mental Break, Death, Provoke, Doom, Haste, Demi, Delay, Capture
Location Encountered Zanarkand Ruins

Items

Steal Stamina Tablet, Farplane Wind
Drop Lv. 3 Key Sphere

Attacks (First Form)

1) Absorb

FFX Yunalesca Boss Guide

A magic attack that saps HP from one target.

2) Sleep

FFX Yunalesca Boss Guide

A magic attack that inflicts sleep on one target.

3) Silence

A magic attack that inflicts silence on one target. Is cast on characters that damage Yunalesca with magic.

4) Blind

FFX Yunalesca Boss Guide

A magic attack that inflicts blind on one target. Is cast on characters that damage Yunalesca with physical attacks.

5) Hellbiter

FFX Yunalesca Boss Guide

A physical attack that hits the entire party and inflicts zombie on all characters. Is performed during Yunalesca’s second and third forms.

6) Cura

A healing spell that does damage to a character affected by zombie.

7) Curaga

FFX Yunalesca Boss Guide

A powerful healing spell that does damage to a character affected by zombie. Can instantly knock out most characters.

8) Regen

A healing spell that damages characters affected by zombie each turn.

9) Mind Blast

FFX Yunalesca Boss Guide

A magic attack that targets the entire party. Causes confusion and curse on all targets. Is performed during Yunalesca’s second and third forms.

10) Osmose

A magic attack that absorbs MP from a single target. Is performed during Yunalesca’s third form.

11) Mega Death

FFX Yunalesca Boss Guide

A magic attack that targets the entire party. Instantly knocks out all non-zombie characters. Is performed during Yunalesca’s third form.

Strategy

How to Defeat Yunalesca

During the first phase of the fight, cast Hastega to gain a speed advantage. Characters affected by silence, sleep, or blind should be cured with Yuna’s Esuna or with Remedies. You can also come into the fight with equipment that negates any of the mentioned status effects, depending on whether a character is a physical or magic damage dealer. For offense, Holy is good for bursting down Yunalesca until the battle continues to the second phase.

Yunalesca in her second form will use Hellbiter to inflict zombie on a party member. She will follow it up by casting Curaga on the target to deal high damage. While you will want to cure zombie characters with Holy Water, it is best to have at least one character under zombie status before going into the last stage of the fight. To keep zombie characters alive, cast Reflect on them to make the healing spell bounce back to Yunalesca. Just remember to use Dispel when she casts Regen to stop her from continuously gaining HP.

Note that Yunalesca will sometimes cast healing spells, most notably Regen, on non-zombie characters. This may be caused by the boss’ AI treating all characters in the active party as undead after using Hellbiter, even if characters were switched out with non-zombie ones or were simply cured of the ailment.

Continue attacking the boss with spells and physical attacks. Remember to keep the zombie character alive as you enter the last phase of the battle.

When the last phase begins, Yunalesca will cast Mega Death. This instantly kills all non-zombie characters. Having Rikku with Auto-Phoenix will be especially useful for this. After reviving all fallen characters, continue unloading on Yunalesca with Holy and other attacks. Use Overdrives when you can to stack up even more damage on the boss until she is defeated.

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