Final Fantasy X / X-2 - Biran and Yenke Ronso Boss Guide

A boss guide for Biran and Yenke Ronso in Final Fantasy X including the bosses' stats, attacks, and strategies for defeating them.

FFX Biran and Yenke Boss Guide

Biran Ronso Boss Information

Stats

HP Varies (2,500 Overkill)
MP 200
Strength Varies
Magic Varies
Defense / Magic Defense 30 / 10
Agility Varies
Accuracy 100
Evasion 1
Luck 15
AP 4,500 (6,750 Overkill)
Gil 1,500
Weakness None
Strong Against None
Absorbs None
Immunity Silence, Sleep, Darkness, Poison, Petrify, Slow, Zombie, Threaten, Death, Provoke, Reflect, Delay, Capture
Location Encountered Mt. Gagazet

Items

Steal Lv.3 Key Sphere
Drop Return Sphere, Friend Sphere, Weapons (Piercing), Armor (MP +20%)

Attacks

1) Bulldoze

FFX Biran and Yenke Ronso Boss Guide

A physical attack on one target. Can hit for critical damage. Separates Biran from Yenke if they are together, regrouping them otherwise.

2) Mighty Guard

Casts Protect, Shell, NulFire, NulFrost, NulShock, and NulTide on both bosses.

3) Thunder

FFX Biran and Yenke Boss Guide

A thunder spell that damages one target.

4) Blizzard

FFX Biran and Yenke Ronso Boss Guide

An ice spell that damages one target.

5) Berserk

Grants increased attack power. Can only be used when Yenke has been knocked out.

Yenke Ronso Boss Information

Stats

HP Varies (2,500 Overkill)
MP 200
Strength Varies
Magic Varies
Defense / Magic Defense 30 / 10
Agility Varies
Accuracy 100
Evasion 1
Luck 15
AP 4,500 (6,750 Overkill)
Gil 1,500
Weakness None
Strong Against None
Absorbs None
Immunity Silence, Sleep, Darkness, Poison, Petrify, Slow, Zombie, Threaten, Death, Provoke, Reflect, Delay, Capture
Location Encountered Mt. Gagazet

Items

Steal Lv.3 Key Sphere
Drop Return Sphere, Friend Sphere, Weapons (Piercing), Armor (MP +20%)

Attacks

1) Bulldoze

FFX Biran and Yenke Ronso Boss Guide

A physical attack on one target. Can hit for critical damage. Separates Yenke from Biran if they are together, regrouping them otherwise.

2) Flame Breath

FFX Biran and Yenke Boss Guide

A powerful flame attack that deals magic damage to all targets.

3) Aqua Breath

FFX Biran and Yenke Ronso Boss Guide

A powerful water attack that deals magic damage to all targets.

4) White Wind

Heals both bosses. Is only used when both Biran and Yenke are still active.

5) Haste

Increases speed. Is only used when Biran is knocked out.

Strategy

Use Lancet and Hi-Potions to heal

Since you will only by using Kimahri for the fight, you can only heal yourself by using Kimahri’s Lancet ability or any Hi-Potions you have. You can also put on any equipment that absorbs fire, lightning, ice, or water spells to let the bosses heal you when they cast any of their elemental spells.

Learning Overdrives from Biran and Yenke Ronso

Have Kimahri attack with his Aqua Breath Overdrive when the two bosses are together. When they are separate, use Fire Breath.

The battle is a good opportunity to learn Mighty Guard, Thrust Kick, Doom, and Self-Destruct Overdrives from Biran. Just remember not to kill Yenke before if you want to learn Mighty Guard, as doing so will cause Biran to cast Berserk on himself. This will prevent him from using Mighty Guard at all for the remainder of the fight. Note that you can learn Doom from him even if he does not cast it in the fight.

Yenke’s White Wind is also a very useful Overdrive to learn. Do not kill Biran if you wish to learn it as doing so will cause Yenke to cast Haste instead of White Wind.

Stealing Lv.3 Key Spheres

The fight is a good way to obtain Lv.3 Key Spheres if Kimahri has learned Steal.

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