Final Fantasy X / X-2 - Overdrive Sin Boss Guide

A boss guide for Overdrive Sin in Final Fantasy X including the boss' stats, attacks, and strategies for defeating it.

FFX Overdrive Sin Boss Guide

Overdrive Sin Boss Information


HP 140,000 (16,000 Overkill)
MP 999
Strength 30
Magic 30
Defense / Magic Defense 40 / 40
Agility 30
Accuracy 0
Evasion 1
Luck 15
AP 20,000 (30,000 Overkill)
Gil 12,000
Weakness None
Strong Against None
Absorbs None
Immunity Silence, Sleep, Darkness, Poison, Petrify, Slow, Zombie, Power Break, Magic Break, Threaten, Death, Provoke, Doom, Demi, Bribe, Delay, Berserk, Immune
Location Encountered Bevelle (aboard the Fahrenheit)


Steal Ether, Supreme Gem
Drop Lv. 3 Key Sphere, Weapon (Piercing, Darkstrike, Silencestrike, Sleepstrike, Slowstrike), Armor (Silenceproof)


1) Gaze

FFX Overdrive Sin Boss Guide

A special attack on the entire party. Has a chance to inflict confused, petrified, or zombie status on targets.

2) Drawn to Sin

FFX Overdrive Sin Boss Guide

A passive move that pulls the party closer. Performed at the start of battle and on its next turn to get the party in range for its attacks.

3) Giga-Graviton

FFX Overdrive Sin Boss Guide

A powerful magic attack on the whole party that causes an instant game over. It is performed after the boss’ Overdrive gauge is full, which is after around 16 turns.


How to Defeat Overdrive Sin

It is recommended to enter the battle with all aeons’ Overdrive gauges fully charged, as you will need to defeat Overdrive Sin quickly. You can also weaken Overdrive Sin to physical attacks by having Auron attack it with Armor Break.

Another way to easily burst down Sin Overdrive is to have Lulu doublecast Ultima or Flare. To make the fight even more trivial, you can mix Wings of Discovery to create Trio of 9999 and use it against the boss.

Casting Hastega on the party when the fight begins allows you more turns before Overdrive Sin can act. Note that the boss will use its first two turns to move closer to the party, giving you time to set up Hastega and burst it down. Make good use of each turn after to stack up as much damage as you can.

If you do not defeat Overdrive Sin by the time it fully charges its Overdrive gauge, it will use Giga-Graviton to wipe out the entire party. Note that the attack cannot be defended against or postponed, meaning the battle is essentially a race against time.

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