Slag is an element introduced in Borderlands 2, and is a by-product of the Eridium refinement process. Slag elemental weapons can coat enemies in said substance, causing them to take extra damage from all other sources.
Borderlands 2[]
Effectiveness[]
The slag-coating effect lasts 8 seconds on normal enemies, and causes them to take +100% damage from non-slag sources. Slag damage has no bonuses or penalties against any non-slag elemental target. To compensate for the massive enemy health boosts in Ultimate Vault Hunter Mode, Slag lasts 15 seconds and causes enemies to take +200% damage (+50%) from non-slag sources. Further slag damage against slagged targets is increased by 50%.
Slag only lasts for 1 second on certain raid bosses. Slag elementals and those immune to status effects also cannot be slagged.
Story Involvement[]
After Handsome Jack began researching the properties of Eridium, he also discovered the mutagenic properties of slag and commissioned an extensive range of tests in the Wildlife Exploitation Preserve. Information given in the mission Doctor's Orders indicates that while many of the tests were conducted on Pandora's wildlife, Jack also ordered the use of human test subjects as well. They were herded into the testing facilities where the scientists were forced to experiment on them under duress. The results were often fatal, but at least in the case of Bloodwing, there are indications that some test subjects survived the process, but were left in a horribly mutated state.
Many slag pools can be found throughout the Arid Nexus - Boneyard and Arid Nexus - Badlands, usually below or near the Eridium pipeline. They slag the Vault Hunters when they enter the pool.
Sources of slag[]
Though introduced in the mission Rock, Paper, Genocide: Slag Weapons! as a level 7 mission, generic slag weapons will not spawn below level 15. The only exception is the mission item given for use in the aforementioned mission.
- List of Unique/Legendary/Seraph weapons and items that always deal Slag damage:
- List of Slag elemental skills:
Notes[]
- Purple barrels slag nearby targets when destroyed. They also damage nearby enemies like other barrels, but for half of the normal amount.
- Slag weapons have a higher chance (1.5x) to apply elemental effects compared to similar weapons of a different element.
- Almost all enemies can be slagged, although some of them, particularly larger bosses, will not change in appearance. The only way to tell if they're slagged or not is by observing a sudden increase in damage numbers.
- Slag elemental enemies cannot be slagged and they resist slag damage, but also have much less health than their other equivalents.
- Enemies immune to elemental status effects likewise cannot be slagged. These include crystalisks, constructors, The Leviathan, Jackenstein, Piston's Blimp, Badassasaurus, and Saturn.
- Most raid bosses can be slagged, but the effect only lasts for one second. Bosses include Terramorphous, Hyperius, Haderax and Voracidous. The rest can be slagged normally.
- Slag coating stays on top of any other status effect, allowing for easy identification of slagged targets.
- Spiderants, threshers, and sand worms remove their slag effect, along with other damage over time, when they burrow. This applies for Haderax as well.
Trivia[]
- "Slag" is a real-life term referring to a by-product that is produced when separating metals from ores - it is usually composed of metal oxides and silicon dioxide.
Borderlands: The Pre-Sequel[]
As Handsome Jack mentions in the dialogue of Eye to Eye, slag is the substance that allowed him to amplify the power output of the Eye of Helios' enormous laser (actually the eye of Destroyer). Unknown to him, excessive slag usage on the eye could cause space-time instability and generate singularities. This was used by Mad Moxxi to manipulate Jack's Vault Hunters in an attempt to kill all of them and destroy the eye. In gameplay, the damage-increasing role of Slag is replaced with Cryo, though with significant differences.
Another presence of slag in the game is more subtle. Its effects (both visuals and damage multiplication) can be applied to Vault Hunters, though rarely, by ranged attacks of various Guardians, Lost Legion Eternal Magi, and The Sentinel. However, the element itself is inaccessible to Vault Hunters.
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