You. Will. Die. (Seriously)

Terramorphous Peak

Gather your friends, make sure someone has 4 Eridium, and head to Thousand Cuts. Descend the stairs on the side of the cliff in Slab Town to enter a special cave with a purple glow. One participant in this mission must place 4 Eridium on the altar in order to gain access to Terramorphous Peak. Once in the new area, blow the horn on the edge of the cliff to initiate the battle.

Success against Terramorphous can only be achieved through cooperation, coordinated skill selections, and maintaining adequate distance from one another. You and your teammates must spread out to avoid being group-killed. It’s all but essential for the party to have at least one Maya with Res for remote revivification, but everyone must be ready to revive their teammates at a moment’s notice. It’s also important to load up on Health regen skills, and class mods and Relics that grant health regen to the entire team. As with most ordinary threshers, Terramorphous has eye-like pustules on its head and tentacles that are extremely vulnerable to attack. Aim for these to inflict critical damage!

Terramorphous itself attacks with its body—lashing out at player characters from afar and pounding with its main-body tentacles up close. If Terramorphous burrows underground and erupts upward underneath a player, they’ll be thrown upward high into the sky without taking damage, though this can lead to indirect death if the player is flung off the mesa where the fight takes place! Its tentacle lashes are also forceful enough to slap players clean off the battlefield, so while it’s prudent to keep your distance from Terramorphous, you don’t really want to be skirting the edges of the stage that aren’t backed by a wall when you can help it. Note that while getting punted by Terramorphous is certainly a humiliating inconvenience, damage or no damage, that’s the only way to reach the Cult of the Vault Hunter symbol located just next to the trap door that drops you to Terramorphous’ mesa to begin with!

Apart from its main body tentacles, Terramorphous also continually unleashes lesser tentacles from under the surface. Generally only two or three are summoned, but occasionally, Terramorphous goes into a tentacle mania and attacks with a half-dozen or more tentacles at once! Of course, this is all while Terramorphous itself continues to attack.

Terramorphous’ tentacles come in five varieties: Spike Tentacles shoot needle-like projectiles at players, just like many threshers and stalkers do. Rock Tentacles hurl enormous heavy boulders—these cannot be shot out of the air, so get out of the way! Beam Tentacles emit lasers directly at players. Masher Tentacles are as elegant as they sound, and they seek to smash squishy people nearby. Finally, Fire Tentacles operate like supercharged HOT Loaders, spewing fireballs. Dealing with tentacles can work both for you and against you—on the one hand, killing tentacles lessens the sources of damage against you and your co-op friends, but on the other, killing tentacles doesn’t actually damage Terramorphous itself and robs your friendly party of potential sources of Second Wind. Coordinate with your teammates to determine who will take out the tentacles as a primary responsibility and when.

Occasionally, when enraged, Terramorphous emerges with its entire body bathed in fire, surrounded by flaming Fire Tentacles. During the fire rage of Terramorphous, the creature takes drastically reduced damage from all sources, and it goes nuts attempting to nail the players head-on with tentacle slaps and ground pounds. While Terramorphous is soaked in fire, it takes way less damage and dishes out way more. Fire-resistant or Fire-immune shields are recommended, if not outright necessary. When Terramorphous is shrouded in flame, the priority of you and your team should be simply to outlast the great thresher, not to continue fighting it head-on. Wait for his rage to subside and the flames to drop before continuing damage in earnest.

Upon death, in the extremely unlikely event that some foolhardy Vault Hunters manage to actually take down Terramorphous, the king of threshers drops a whole slew of items, which potentially includes several orange rarity-grade items that only Terramorphous can drop. Killing Terramorphous also allows you to exit Terramorphous Peak through a chamber with multiple treasure chests, giving you extra shots at epic loot.