Fl4k (Beastmaster) Gamma Burst Radiation Pet Build BiS Gear and Stat Priorities

This Fl4k Gamma Burst Radiation Pet build guide is split in 3 different pages. The other 2 pages are the build overview and the skills, which you can access by clicking the buttons below.

In this build you, will be looking to focus on Radiation damage to maximise the synergy with Gamma Burst and your pet.

The first gun you should look for in this build is the COV Pistol Pestilence. When the gun overheats, it has the unique effect to self-inflict a Radiation aura. This provides an easy way to make use of the Elemental Projector Artifact to boost your Radiation damage. This weapon can be used as your primary weapon, or you can switch to a more powerful Radiation weapon once you have your self-inflicted Radiation aura.

In your second slot, you should look for a strong all-purpose Radiation weapon. As this build largely deals damage from a distance, you should look toward guns that work at range, such as Assault Rifles, but this mostly comes down to personal preference and gear you have available. The best recommendations for this slot are Rowan's Call and Laser-Sploder.

In your third gun slot you should look for another strong Radiation weapon that can cover some of the flaws in your second gun. One of the biggest issues you will have is ammo consumption so picking a different weapon type is important. This, again, is highly dependent on your available gear and preference, but an SMG is ideal for this as it will also help deal with enemies at close range. The best guns for this are Crossroad and Westergun.

In your last gun slot, you should choose a non-Radiation gun to deal with situations where Radiation is not effective, such as against Armored enemies or when Mayhem modifiers are unfavourable. To overcome this, a Cryo or Corrosive weapon is ideal, however, any strong well-rounded gun will suffice. Night Hawkin is the best first choice due to its high damage output and its ability to deal both Cryo and Incendiary damage. Alternatively, you can use Lucian's Call, Rowan's Call, or Laser-Sploder with an alternative element.

For your Class Mod, Red Fang is essential for this build. The widespread Taunt effect it offers your pet while using Gamma Burst is essential for survivability. You should look to have at least one skill point in He Bites! on this Class Mod and any damage bonuses that will support your weapon choices.

In this build, Secondary Artifact abilities are more important than Primary ones, so it can be worth picking up a strong Epic Artifact over a weaker Legendary one. If you have the Pestilence gun, you should look to pick up Elemental Projector as part of your Artifact to be able to boost your Radiation damage. Without Pestilence, Atom Balm is the next best Secondary Artifact choice. For the Primary Artifact, the only reasonable options are Victory Rush and Otto Idol, but these should only be considered when paired with the aforementioned Secondary Artifact abilities.

This is one of the few builds available that has a definitive best shield choice. You should look to pick up a Red Suit to give yourself 100% resistance to your own Radiation damage. This will also prevent you from taking damage if you are utilising an Elemental Projector Artifact.

When choosing your Grenade Mods for this build, you should look specifically for those that benefit from the Radiation damage bonuses this build stacks. This only leaves a few options available, with the best choice being Hex, followed by Surge and Tran-fusion.

Anointed rolls are special additional effects that can appear on weapons and shields at higher levels. The special effects relate to the use of action skills and provide powerful temporary buffs.

In this build you are primarily looking for one Anointment in particular, 'While Gamma Burst is active, gain 65% bonus Radiation Damage'. As Gamma Burst will be active most of the time, this Anointment gives a large boost in damage and synergises excellently with your specialisation in Radiation Damage.

As this build uses its Action Skill very infrequently, every other Anointment is very weak. However, the best alternatives that will give a very small boost in damage are 'On Action Skill End, Weapon Damage is increased by 100% for a short time' and 'On Action Skill End, Deal 125% more Weapon Damage to Badass, Named, and Boss enemies for a short time'.

This build in particular has one very important mission when it comes to gearing. After completing the Angels and Speed Demons main story mission in Devil's Razor, Vaughn will reward you with a Red Suit, a core item for this build. As the special effect of the Shield is important for this build, picking up the shield at any level is viable for end-game content. However, it can be worth rushing through the story again on TVHM if you wish to pick up a copy of the shield again at your current level.

Slot	Item	Special Effect	Secondary Stat/Effect Priority
Weapon 1	Pestilence	The gun will deal a Radiation damage-over-time effect to you when it overheats.	No -% Weapon Damage Critical Hit Damage Weapon Fire Rate
Weapon 2	Rowan's Call (Radiation) Laser-Sploder (Radiation)	Fires two projectiles connected by a powerful laser Fires a constant beam of damage that will occasionally explode for additional damage	Critical Hit Damage Weapon Charge Speed
Weapon 3	Crossroad (Radiation) Westergun (Radiation)		Critical Hit Damage Weapon Charge Speed
Weapon 4	Night Hawkin Lucian's Call Rowan's Call (Non-Radiation) Laser-Sploder (Non-Radiation)	Will change between Incendiary and Cryo damage based on time of day Critical hits ricochet 2 bullets and return 2 bullets to your magazine Critical hits ricochet 2 bullets and return 2 bullets to your magazine Fires a constant beam of damage that will occasionally explode for additional damage	Critical Hit Damage Weapon Fire Rate Weapon Damage
Shield	Red Suit The Transformer Stop-Gap	Provides Immunity to Radiation Damage and emits a light Radiation aura to nearby enemies Absorbs all Shock damage Provides 5 seconds of immunity after shield breaks	Action Skill Cooldown Rate
Class Mod	Red Fang		He Bites! skill point Manufacturer Damage Manufacturer Critical Damage
Artifact	Elemental Projector Atom Balm Victory Rush Otto Idol	Enhances Elemental damage for Elements you are currently suffering damage from. Enhances all Radiation effects. Bonus damage and movement speed for 60 seconds after killing a badass. Restores Health upon killing enemies.	Radiation Damage Action Skill Cooldown Rate Assault Rifle Damage Magazine Size
Grenade Mod	Hex (Radiation) Surge (Radiation) Tran-fusion (Radiation)	Hovers around shooting lightning at enemies. Bounces and multiple times and releases 3 MIRV grenates each bounce Heals for 120% of damage dealt.	Grenade Splits Spawns MIRV grenades