[FFXIV] Steps of Faith

So, you finally get to meet the biggest boss of the game: Viscap. But, how do we beat it? It's untankable for starters. The slow debuff from the cannons does nothing to the viscap, and the stun from the cannons does nothing to the viscap. However, all the debuffs from the cannons will work on adds (Stun is used on the massive circle AOE from the turtles, slow is used in the path of biasts.) Below is a walkthrough step by step:

P.S: Don't stand in the path of the viscap's feet, they hurt, a LOT.

AREA ONE
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REMINDER: THE STUN, SLOW DEBUFFS FROM THE CANNONS DO NOT DEBUFF/STUN THE BOSS.

Here, you will see Viscap, four cannons, and NPCs and your party. First and foremost, both tanks should NOT get the same adds nor attempt to get aggro on the boss itself, the boss is immune to aggro and is scripted to walk forward. One tank, one DPS, one healer should man the cannons. Why these three? Because Three DPS need to pummel the adds and the boss as much as possible, and a single healer has to heal everyone. Why do we need THREE on a cannon? Area Two explains that! As said above, use the stun skill of the cannon on any big aoe you see (Not the boss' aoe, stun does nothing to the boss.) Avoid AOEs otherwise if you're in the main group.

You can also use DPS-DPS-TANK instead if you need an extra healer on the main group.

AREA TWO
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REMINDER: THE STUN, SLOW DEBUFFS FROM THE CANNONS DO NOT DEBUFF/STUN THE BOSS.

Here, you will see a tower, four cannons, NPC fighters, more adds. Biasts will barrel toward the cannons, kill them asap. (After the biasts hit the cannons once each, you can grab them with aggro skills) Do what you did before in area one, but NOW, that DPS from that tank, healer, DPS party that was on the cannons, goes to the top of the tower. Once the viscap has his belly in the red aoe circle on the ground when standing near the dragonkiller, USE THE DRAGONKILLER. Once you use the dragonkiller, get back down to help the DPS pummel the boss and adds.

AREA THREE
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REMINDER: THE STUN, SLOW DEBUFFS FROM THE CANNONS DO NOT DEBUFF/STUN THE BOSS.

Here you will see some weird orange/yellow crystal things, and guess what, more cannons! The DPS heads up the tower as per normal from the tank-healer-DPS group, and waits. When Viscap does his massive Rectangle AOE, use the crystals near the cannons. Once you do, the dragon will be chained, YOU NEED TO USE THE DRAGONKILLER AFTER THE DRAGON IS CHAINED FULLY OR ELSE HE WILL DODGE THE DRAGONKILLER.

AREA FOUR (WARNING! WARNING! WARNING! THIS IS THE LAST ATTEMPT YOU GET!)
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REMINDER: THE STUN, SLOW DEBUFFS FROM THE CANNONS DO NOT DEBUFF/STUN THE BOSS.

Music will change. First up, a bunch of powder kegs. DO NOT LET THE ADDS ATTACK THESE KEGS. Once the kegs are gone, the DPS-Tank-Healer party goes up to the cannons, DPS goes to Dragonkiller per normal.