Shadowpelt is the mangler boss in Borderlands 4, presenting one of the most challenging fights in the game. To find it, you’ll need to step into Whistler’s Maw Abandoned Mine in the Cuspic Climb region of the Terminus Range. This is a gank fight that’ll keep you on your toes, as you’ll be swarmed by manglers while the boss attacks you from the shadows.
With that in mind, here’s everything you need to know about Shadowpelt, including how to locate the boss, combat tips, and rewards.
Shadowpelt location in Borderlands 4

To reach the Whistler’s Maw, fast-travel to the Reliquary Silko and move North until you come across a cave with a peculiar entrance. The manglers outside the Mine entrance are a sign that this is going to be a good fight. You can ignore them and move inside.
Following the path, you’ll come across three frozen rooms before before you fight the boss. Each room will spawn manglers, including a big one that you can sometimes find in the open world.

After clearing the first room, you’ll come across what seems like a dead end. To move forward, you’ll need to break the wooden crate to make an opening that leads to the second room.

The third room requires you to grab a ledge and glide towards the red light. You need to use a small tunnel that leads right outside the boss room. In that area, you can stock up on ammo and slide down to enter the boss arena.
How to defeat Shadowpelt in Borderlands 4: Combat and survival tips

The Shadowpelt rocks an appropriate name, as the boss will remain invisible as long as its shields are active. Once you break them, the beast will reveal itself, but only for a short time. When we mentioned that the boss fight was challenging, this is what we meant.
When you break the shield, there will be a brief window for you to damage its health. After about 10 to 15 seconds, the boss will regenerate all of its shields, and you’ll need to repeat the entire process. This is when you’ll face a variety of attacks from the boss.
Here are all the attacks that Shadowpelt may use during the fight:
Shock Nova

Shadowpelt stomps the ground, firing electric balls in all directions. They deal a significant amount of damage, but you can avoid them by keeping your distance from the boss. As the projectiles travel farther, they create gaps that you can use to avoid getting hit.
Stomp

The boss jumps across the arena. This attack is also similar to the Shock Nova, but instead of electric balls, the boss' landing creates a shockwave. The best way to avoid this move is to dash out of Shadowpelt's attack zone; however, this can be challenging, as the boss is invisible for the majority of the fight.
Electric projectile

While invisible and at a distance, the boss will charge an electric projectile using its tail. If it hits you, it will break your shield and apply the shock effect. Since the attack does not track you, moving out of the way is the best way to avoid the projectile.
Claw Attack

While invisible, Shadowpelt will often charge you and execute a swiping claw attack that deals a large amount of damage. To prevent that, either dash out of the boss' way or knock it out. Use automatic shotguns or explosive grenade ordinance to protect yourself.
The best tip we can give you about the boss fight is upgrade your ammo capacity. Shadowpelt is a bullet sponge, and finding yourself out of ammo is almost certainly a death sentence. Taking weapons that can use alternate ammo is a good option. Additionally, inflicting a status effect on the boss will make it much easier to find.
Drops and rewards for defeating Shadowpelt in Borderlands 4

Defeating the boss for the first time will yield 40 SDU (Storage Deck Upgrade) points in addition to the loot the boss drops, which can include weapons, shields, repkits, ordnance, cash, class mod, and enhancement mod.
Occasionally, you can get Legendary weapons from this entity. Here are all the Legendaries that can drop after you defeat Shadowpelt:
- Sparky Shield
- Vamoose
- Slippy

The room leading outside, beside the arena, contains a red chest that may reward you with rare or Legendary items. Note that high-rarity items aren’t guaranteed, but playing on a harder difficulty will improve their chances of being dropped.
Check out more articles:
- Borderlands 4: Which is the best Vault Hunter to start with?
- Borderlands 4: All status effects, explained
- Borderlands 4: Which difficulty should you play on?
- Borderlands 4: What is Eridium used for?
- How to open Vaults in Borderlands 4