Remnant from the Ashes: Build Guide - Ex-cultist builds vs Apocalypse bosses

Build 1:
Sawed-off - veil of the black tear
Shotgun - hotshot
Scythe
Abrasive amulet
Provisioner ring
Stockpile circlet

This is the Ikro killer build. If you want to just straight up cheese Ikro, look no further. The cultist set goes hand in had with timed mods. In this case, we will be able to use veil and hotshot for an insane 33 seconds. With veil up, you won't need to worry about those pesky projectiles while we focus on Ikro. Be sure to kill the orb when Ikro drops to the ground. This will stagger Ikro again and prevent him from summoning his rats. One charged attack from the scythe will provide full corrosion stacks from abrasive. Pro ring and stockpile circlet ensure we never have to reload and can endlessly swap back and fourth between weapons for a non stop assault. For those who didn't know, pro ring's reload speed is determined by ammo capacity. The more ammo, the faster the reload. Since stockpile increases the ammo capacity, pro ring will reload our guns faster.

Build2:
Hive cannon
Beam rifle - hot shot
Scythe
Charcoal necklace
Akari warband
Burden of the gambler / ring of supremacy

The Ixillis killer. Most people like to use veil for this fight as well. I always preferred hive shot to protect me from the wisps as it charges much faster. With cultist, the hive shot lasts for 22 seconds. So if you need to escape for whatever reason, your hive shot will still be on the ground ready to shield you. Since hot shot lasts 30 seconds and charges super fast as well, charcoal necklace will give us a nice damage buff for the hot shot and burn DOT's. When beam rifle reaches max ramp up, even with cultist, you will be dealing some solid damage with this set up. Use ring of supremacy against weakspot bosses. This build is strong enough to pass the DPS check from Ixillis, so gambler will provide more damage in this fight. I know the beam rifle is ramping up the hive shot mod DOT's slightly due to the glitch but even when the glitch gets patched, this build will still hold up well. You can see the damage out put when the hive shot dissipates and is not hitting ixillis anymore. Still strong!

Build 3:
Secondary - corrosive aura
Primary - mantle of thorns
Scythe
Terror margin
Alchemist's jewel
Burden of the gambler

For the mad lad's who want to melee with cultist. Cultist allows for mantle of thorns to last almost a full minute and a half, it's nuts. Pair this with alchemist's jewel and this turn us into a mini leto's with a fast roll. Corrosive aura to give us that sweet 25% damage buff and our gambler ring for more damage. Went with the scythe because it's the highest DPS melee weapon. Terror margin heals generously, so get in there, tank hit's, heal and destroy.

Build 4:
Hive cannon
Ricochet rifle - Stormcaller
Voice of the tempest
Vulcan's detonator
Burden of the gambler / akari warband /ring of supremacy / gravity stone
Akari warband / gambler / ring of supremacy / gravity stone

Another nice pairing for cultist. Stormcaller lasts 33 seconds with this set up which enables us to enter stormcaller once the fight starts, until the end. The hive clouds will last the duration of the fight as well, applying sweet constant DOT's to Riphide. If you are using stormcaller, chance are you are fighting multiple enemies at close proximity. In this case, gravity stone works extremely well as we get a 20% total damage buff when there are 2 or more enemies within 10 meters from us. Stormcaller can crit, so gambler will give us more damage there. Hive cannon and Stormcaller also counts as an explosive, so vulcan's detonator pairs nicely with the both of them to increase their damage and provide some nice burn DOT's. Voice of the tempest can cause overloaded explosions which also pair well with vulcan's.

Build 5:
Sawed-off - swarm
Assault rifle / beam rifle / Chicago typewriter - hot shot
Hero sword
Abrasive amulet
Burden of the gambler / akari warband / ring of supremacy
RIng of supremacy / akari warband / burden of the gambler

A nice ranged variant for cultist. The swarm mod, which is the best mod in the game IMO, will last 33 seconds with cultist, as well as the hot shot mod, providing great damage. I refrained from using the beam rifle in this fight due to the glitch and it ramping up swarms damage. I wanted to show you that the damage output is till great, even without the glitch. We will provide corrosion from a distance here using the hero sword/abrasive combo. For this fight, I opted out of using akari warband (usually the best in slot) due to the lack of perfect dodge opportunities this fight had. Feel free to use any of the listed primaries. All are great weapons and will pair with this build nicely.

Build 6:
Sawed-off - swarm
Shotgun - hotshot
Scythe
Abrasive amulet
Burden of the gambler / akari warband / ring of supremacy
Akari warband / ring of supremacy / burden of the gambler

The close quarters version of the above build.