Brace yourselves for a deadly endgame encounter with awesome new Legendary loot. Borderlands 4's first raid boss has arrived as part of a free update for all players.

Bloomreaper the Invincible is a corrupted god who lures surface dwellers into the depths of the abyss where their corpses feed its roots. This towering creep poses the ultimate challenge to any Vault Hunter, pushing your build and skills to the max. The new timed challenge system means the faster you take it down, the better the loot. Kill Bloomreaper quick enough, and you’ll get the coveted Platinum chest with an all-new Legendary weapon: Rainmaker.

The latest free update adds nine new Legendaries you can farm as dedicated drops: five new pieces of gear and four new Class Mods. But the majority of that new loot will only drop if you can beat Bloomreaper quick enough in Ultimate Vault Hunter Mode (UVHM), the amped-up difficulty setting you can learn about in our Borderlands 4 endgame explainer.

This introduces a timer for your raid run, so do your best to deal death as rapidly as possible. When this ferocious flora finally bites the dust, you'll be rewarded with a chest full of loot including tiers of bonus rewards. Depending on your completion time, the Bronze, Silver, Gold, or Platinum-tier rewards you get from this chest will be increasingly powerful. You'll be able to clearly see how much time you have left to hit a certain tier via your mission tracker.

All of Bloomreaper's Class Mod drops are only available when achieving the Silver tier or higher in UVHM. And if you absolutely ace the Bloomreaper fight to earn Platinum-tier rewards, you'll score a guaranteed new Legendary drop: Rainmaker, a new Ripper Sniper Rifle with a massive magazine, high fire rate, and a chance to not consume ammo with each shot. To anyone seeking a Rainmaker of their own, all we can say is: good luck.

Here's the full list of new Legendary loot you can get from the reward chest once you defeat Bloomreaper:

• Rainmaker - Ripper Sniper Rifle (guaranteed drop for Platinum-tier rewards in UVHM)
• Mantra - Maliwan Shotgun
• Undershield - Vladof Shield
• Urchin - Tediore Ordnance (Grenade)
• Jett-Setter - Ripper Ordnance (Heavy Weapon)
• Misericorde - Siren Class Mod (can only drop for Silver-tier or higher rewards in UVHM)
• Overdriver - Exo-Soldier Class Mod (can only drop for Silver-tier or higher rewards in UVHM)
• Trooper - Gravitar Class Mod (can only drop for Silver-tier or higher rewards in UVHM)
• Lamplighter - Forgeknight Class Mod (can only drop for Silver-tier or higher rewards in UVHM)

Raid boss requirements

Bloomreaper presents the most difficult endgame challenge yet, so you'll need to complete Borderlands 4's story campaign before you even think about taking it on, and while there isn't a strict level requirement for this fight, you'd be wise to hit the level-50 cap. Just like the rest of Borderlands 4, Bloomreaper's health and damage will scale to your party's size and levels, but you should expect a highly challenging encounter whether you take on this fight solo or in co-op.

The "Invincible" moniker is a throwback to the raid bosses of previous Borderlands games (so Bloomreaper isn't literally unkillable). You'll have to contend with its massive health pool and extremely lethal attacks in this multi-phase fight. 

Taking down this rotted, parasitic monstrosity isn't as simple as dumping tons of bullets into its corrupted stalks, as you'll need to traverse a deadly arena to avoid its attacks, grapple-leaping between a cluster of stone pillars above a seemingly bottomless canyon. Should you miss a jump or dive the wrong way in a panic, plummeting into that foggy abyss means instant death. Stay aloft, stay alive.

Any Vault Hunters brave enough to battle Bloomreaper should check any of Kairos' major hubs for a new Raid Board, with a mission to eradicate this hideously overgrown weed in its perilous lair: The Bloom. 

More endgame content

Bloomreaper the Invincible is just one aspect of Borderlands 4's endgame, which will continue expanding with future content updates. Near-term, the new Major Update that includes Bloomreaper also adds a new Ultimate Vault Hunter Mode - Level 6 for an added layer of difficulty to conquer. Looking ahead, we recently shared that we're developing an all-new Takedown raid that will be part of a free update for all players in 2026, featuring an extremely challenging gauntlet through a new area, including hordes of enemies and new boss encounters.

Today's Major Update also includes the option to enable a new difficulty mode that scales up all enemies as if you were playing in a 4-player party, regardless of your current party size. That means your opponents will be tougher to take down, far more numerous, and have more Badass elites among their ranks. 

We're calling this new setting True Mode, which is found in the Session Settings menu and can be toggled on or off independently of Ultimate Vault Hunter Mode, giving you full control on just how much punishing difficulty you think your Vault Hunter can handle. Because of how the scaling works, True Mode doesn't have any effect on 4-player co-op, but smaller parties can use it to ramp up the difficulty. If you think you've created the most powerful, game-breaking build in existence, try playing solo with True Mode activated at UVHM Level 6. 

We hope you enjoy testing your mettle against Bloomreaper the Invincible, and we can't wait to see how many of you manage to beat Borderlands 4's first raid boss. With enough skill and strategy, you can turn this hulking monstrosity into a giant pile of mulch and earn new Legendary loot for your efforts. And, in case you missed it, you can jump into Bounty Pack 1: How Rush Saved Mercenary Day right now, as it's free for all Borderlands 4 players!*

*How Rush Saved Mercenary Day is the first of five post-launch DLC Bounty Packs coming to Borderlands 4. How Rush Saved Mercenary Day is free for all players, while Bounty Packs 2, 3, 4, and 5 are included with Borderlands 4 Deluxe Edition, Borderlands 4 Super Deluxe Edition, the Borderlands 4 Bounty Pack Bundle, and will be available for separate purchase. Base game required to play content.