Sin is the main antagonist in Final Fantasy 10, and is a character with an interesting story arc, which anyone looking for how to defeat Sin will probably know already. You encounter Sin on multiple occasions throughout the game, but the final boss battle is particularly tricky, and many who have played Final Fantasy 10 have given up at this point.
The battle is split into four sections, the last of which pits you against the head of Sin (or overdrive Sin) in what is undoubtedly one of the hardest boss fights in gaming history. Yet, there are a few tips and tricks that can help you avoid defeat, and this article will outline the best ways to win. Read on to find out how to defeat sin in FFX.
How to Find Sin
To find Sin, you must first travel to Highbridge after Yuna expresses a desire to go to Bevelle. Locate Mika within Bevelle to discover the location of Sin. Once you have conversed with Mika, Sin’s location will be added to the map and you can get there via the Airship.
After taking the elevator to the Airship’s deck, Sin will be there waiting for you – it’s difficult to miss his flying ginormous whale-like body.
The first two parts of the final boss battle are against Sin’s left and right fins. These should both be relatively easy, and you’ll just need to move in and attack with your strongest party members, defeating one fin at a time.
Both of Sin’s fins are immune to status effects and will dispel any augmentations that you cast on your own party with Negation. Each fin has an HP of 65,000 and can be looted for a Supreme Gel if the Steal ability is used.
One thing to be wary of when fighting the fins is their ability to use Gravija, an attack that can deal substantial damage. To avoid being hit by Gravija, pull back with the airship as soon as the core starts energizing. Once you have evaded it, continue to attack the weak spot until both fins are destroyed. Avoid using Overdrive moves, as you will need this for the final part of the battle.
Sinspawn Genais and Sin’s Core
The third part of the showdown with Sin is a fight against Sinspawn Genais and the central core of Sin. This is another fairly easy battle that should pose no real threat if you have sufficiently levelled up. As with the battle against the fins, avoid using Overdrive abilities at this stage.
Sinspawn Genais has 20,000 HP and is immune to Sleep, Armor Break, Mental Break, Capture, Poison, Darkness, Petrify, Delay, and Death. Using the Steal ability will yield a Star Curtain or a Shining Gem. Sinspawn Genais has a vulnerability to fire magic, so make sure to attack using Firaga.
After the Sinspawn Genais is downed, Sin’s core will appear. As before, use fire magic to deal the most damage, and try and have a handful of Al Bhed potions at the ready to revive all party members at once, particularly if you are faced with the Gravija attack. Sins’s core is not immune to armor break, so cast this as soon as possible and use melee attacks with your most powerful party members. After winning the battle, the core will drop a return sphere, a piercing weapon, and zombie proof armor.
The Head of Sin
Now that the first three battles are out of the way, you are on to the final stage of the showdown against Sin. Unfortunately, though, this is harder than the previous three fights combined. There is a chance to rest and replenish after defeating Sin’s core. Equip as much confuse, stone, and zombie proof armor as possible. Once you are ready, return to the Airship’s deck and talk to Yuna to initiate the fight.
It is essential to enter the battle with all of your party members’ (including Aeons) Overdrive gauges maxed out – this will make the fight far easier. Sin starts with 140,000 HP and has 1,600 ability points. The key to defeat Sin’s head is to do it as fast as possible, but he has a number of abilities that he will use throughout the battle in order to slow you down.
Confuse Gaze, Gaze, and Zombie Gaze are regularly used by Sin, so be sure to have sufficient supplies of the appropriate recovery items. When Sin performs Giga-Graviton, though, it’s game over, so you’ll have to take him out beforehand. Giga-Graviton usually triggers after 16 turns, or as soon as Sin’s Overdrive charge is full.
As soon as the fight begins, cast Hastega on all party members, as this will allow you to deal as much damage as possible in the shortest amount of time. With Yuna, summon both Anima and Bahamut as early as possible, and use both of their overdrive abilities to deal heavy damage. When you get close to Sin, use Armor Break, and Quick Hit for some quick extra damage.
Other attacks that work effectively against Sin’s Head are double casts with -aga spells, Wakka’s Attack Reels Overdrive, Holy and Ultima spells, and Rikku’s Spare Change Overdrive. If you suspect that Sin is about to deal heavy damage to your party, have Yuna summon an Aeon in order to take the brunt of the damage.
If you follow the tips outlined here on how to defeat Sin, you shouldn’t face any problems in defeating Sin’s Head. Without question, it is one of the hardest battles in the whole game, but you have to go gung-ho to beat the head of Sin, using as many resources as necessary. After you’ve defeated him, you get to go inside Sin and encounter some equally challenging boss battles.
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