FFXIV: Pharos Sirius – Siren Final Boss Fight Guide

Siren, the final boss of Pharos Sirius, is a little difficult. This fight’s based not only on skill, but also on luck. If you don’t have voice communication set up I recommend setting that up as well.

A few things of note:

• Siren will spawn waves of adds, you’ll want to kill Sergents first as they can stun.
• Song of Torment will target whoever has aggro and puts a bleeding effect on them. (Hopefully this will be the tank.)
• Lunatic Voice is an AoE move that will put a debuff called Reduced Immunity on all party members. The Healer needs to remove this from all party members as soon as possible.
• Siren will use a single target charm called Dreamy Voice. The healer can remove this debuff, but if it’s used on the healer then you’ll just have to ride it out. Tank will need to pop all their heavy defensive cool downs at this time. (This is part of the luck factor.)
• When Siren flies into the air, she will do one of two attacks. The first is a straight line charge, she will appear on the outer ring if she is charging. The other is an AoE charm, if Siren appears in the center gather around her. The area just under Siren is the only safe spot.

I tank her in the middle because it’s easier to group up for the AoE charm.

This fight only gets complicated if your healer is getting charmed, other than that it’s basically tank ‘n spank.

Your tank doesn’t need to really dodge anything to be honest unless they pull aggro on a Sergent. definitely make sure the Sergents are killed first, the stun on them is a pain.

This fight is really difficult on the healer since they have to constantly watch for the Reduced Immunity debuff and solo charms. If the healer has aggro on the Zombies, they should immediately pull them to the tank. The tank can hold adds while the DPS kill them, but they’ll need a bit of extra healing.

The tank’s big defensive cooldowns should be saved incase the healer gets charmed. Other than that, it’s really up to luck with the two attacks, and the charm targets. Good Luck!

For more walkthroughs, check out my list of FFXIV guides.

The Rest Of The Pharos Sirius Guides:

• Pharos Sirius – First Boss Symond the Unsinkable
• Pharos Sirius – Second Boss Zu
• Pharos Sirius – Third Boss Tyrant