If you’ve spent any time grinding The First Descendant’s 2026 endgame raids, you’ve almost certainly hit a wall with the Gluttony boss fight at least once. I spent three straight evenings wiping on this boss earlier this month, burning through 12 repair kits and almost all of my rare ammo reserves before I cracked the pattern that makes this fight trivial. This guide breaks down everything I learned, from loadout choices to attack tells, so you don’t have to waste hours like I did. By the end, you’ll know exactly how to beat gluttony the first descendant without relying on overleveled teammates or lucky RNG drops.
First: Master Gluttony’s Core Attack Patterns to Avoid One-Shot Kills
Most players wipe on Gluttony not because they have bad gear, but because they don’t recognize his clear attack tells until it’s too late. His attack cycle repeats every 90 seconds with zero random variation, so you can predict every move he makes after 1 or 2 runs of observing him. Gluttony’s leap attack has a 2-second red flash tell before it launches, and dodging left or right instead of straight back will let you avoid all damage from it every single time.
His acid spray attack comes right after the leap, and if you see him rear back his head, run to the far edge of the arena immediately. The acid pools only cover the middle 70% of the space, so sticking to the outer perimeter keeps you safe without forcing you to stop dealing damage. His grab attack is the deadliest, and it only targets the player with the highest aggro, so if you’re running a tank build, keep your shield up 3 seconds after he finishes his acid spray, that’s when he always uses the grab. I still have a clip of my first clear saved on my PS5, where my whole team was screaming when we took him down right before he triggered enrage, it was so satisfying after all those wipes.
How to Beat Gluttony the First Descendant: Exploit His 3 Hidden Weak Points
You don’t need a 1400+ power level build to melt Gluttony if you hit his weak points consistently, I cleared my first run with a 1210 power level precision build just by focusing on these spots. The first and highest priority weak point is the glowing green sac on his underbelly, the sac is only exposed for 4 seconds after he uses his leap attack, so you want to save all your burst damage for that window. The latest patch adjusted weak point multipliers, so the sac now takes 4x damage instead of 2x, you can check the full changes in the 2026 Gluttony balance update notes if you want to see all the recent tweaks.
The second weak point is the small glowing vents on his left shoulder, which only open when he’s charging his acid spray. You’ll need a precision rifle or sniper to hit these reliably, but landing a shot on them gives you a 3x critical hit multiplier and stuns him for 2 seconds. The third weak point is the core on his forehead, which only exposes itself when he’s stunned from either of the other two weak points being broken. Aim for this core when it’s open, and you’ll deal enough damage to cut his health bar by 10-15% in a single burst. Make sure you equip fire damage mods too, since Gluttony has a 25% weakness to fire damage in the 2026 update, that’s an easy damage boost you don’t want to miss.
Optimal Team Composition for Smooth Gluttony Clears
The biggest mistake I see teams make is running four DPS characters, which almost always leads to wipes halfway through the fight. Gluttony’s aggro bounces around constantly if there’s no tank to hold his attention, and you’ll burn through all your ammo and heal items before you get him to 50% health without a support. The ideal team comp follows four clear roles, and you can adjust it slightly if you’re playing solo:
One tank build with at least 70% damage resistance is non-negotiable for holding aggro, even if you have a team of all maxed out DPS players. If you’re playing solo, you can swap the support for a second DPS, but make sure you bring at least 15 heal items and 5 ammo refills, since you won’t have a support to restock you mid-fight. I tried soloing him three times before I realized I needed to swap my ice damage mod for fire, that one change cut my fight time in half immediately.
Common Mistakes That Make Gluttony Way Harder Than He Should Be
Even if you have the perfect loadout and team comp, small mistakes can lead to wipes if you’re not paying attention. The first mistake most players make is standing in the middle of the arena the whole time, acid pools stack on top of each other, so rotating around the edge of the arena leaves you with safe space to stand later in the fight when he uses more frequent acid sprays. The second mistake is wasting ultimate abilities when Gluttony isn’t stunned, you only get 2x ultimate damage if you use it when he’s reeling from a broken weak point, otherwise most of the damage gets resisted.
You also want to avoid reviving teammates right before Gluttony uses a leap attack, wait for the attack to finish before you start reviving, otherwise you both get one-shot and put your team at an even bigger disadvantage. Never try to break more than one weak point at a time, since this triggers Gluttony's enrage state 2 minutes earlier than normal. I made this mistake my first five runs, we kept triggering enrage before we got him to 20% health, and his enrage attacks are unblockable, so there’s no way to survive them for more than 10 seconds. You don’t need to rush the fight, take it slow and focus on one weak point per attack cycle, and you’ll get him down without triggering early enrage.
You don't need perfect gear or a maxed out character to clear this fight, you just need to pay attention to patterns and prioritize the right targets. Take the time to tweak your loadout, coordinate with your team, and avoid the common mistakes we covered, and you'll knock out this boss on your first or second try. If you're still struggling, spend 10 minutes in practice mode to learn his attack tells before you jump into a real raid run. Now that you know how to beat gluttony the first descendant, you can move on to the even harder endgame raids waiting for you in the 2026 content update.