What Breach does in Minecraft
Breach is a mace-only enchantment that cuts through armor. Each level shaves 15% off the target’s armor protection, so a player in full diamond loses a chunk of their defense before your mace even lands. At the cap of Breach IV, that’s a 60% reduction.
It only works on the mace, which is itself a weapon added in the 1.21 Tricky Trials update. You won’t find Breach on a chestplate, a sword, or anything else. Apply it to a mace, then hit harder against players or mobs wearing armor.
The catch: Breach isn’t available at the enchanting table or from villager trades. The only source is the ominous vault inside trial chambers, which means you’ll need a Bad Omen effect to even open the right vault.
How to get Breach
There is one path, and it runs through trial chambers with Bad Omen active.
- Build up a Bad Omen effect. The easiest method is to drink an Ominous Bottle, which you can earn from raid captains or as a reward in trial chambers themselves.
- Enter a trial chamber while Bad Omen is active. The regular trial spawners turn into ominous trial spawners, and the vaults at the end change to ominous vaults.
- Pick up the ominous trial keys that the ominous spawners drop after you clear them.
- Use those keys on the ominous vaults. One possible drop is an enchanted book with Breach on it.
You can’t enchant a mace with Breach using the enchanting table. It simply does not appear in the table’s options, no matter how many bookshelves you stack around it. There’s no villager trade for a Breach book either as of 1.21.
Once you have a Breach book, take it and a mace to an anvil and combine them. The cost in experience levels scales with the book’s level and any existing enchantments on the mace.
How Breach works mechanically
Breach reduces the target’s armor effectiveness by 15% per level. The levels stack linearly:
- Breach I: 15% armor reduction
- Breach II: 30% armor reduction
- Breach III: 45% armor reduction
- Breach IV: 60% armor reduction
That’s the full picture for damage calculation. If your target has 20 armor points (a full diamond set with no enchantments), Breach IV makes your mace hit as if they had 8 armor points instead.
The reduction applies to the armor stat itself, not to other defenses like Protection enchantments or Resistance. Those still cut damage after the armor calculation runs. Breach is most valuable against players or mobs whose protection comes mainly from raw armor coverage rather than from enchantment stacking.
It’s also why the mace is so dangerous against well-equipped opponents in PvP. A diamond axe or netherite sword has its own damage advantage, but it still has to push through the full armor value. The mace, swung with Breach IV, skips a large chunk of it.
One small note on stacking. Breach reduction is multiplicative against armor, not against final damage. That means stacking Breach with a damage-boosting enchantment like Sharpness gives you both a fatter hit and less armor in the way. The two effects compound, which is what makes the combination feel disproportionate in practice.
Why pick Breach on a mace
Two main reasons.
The first is PvP. In a 1v1 against a player in full diamond or netherite, Breach IV more than halves their effective defense. Combined with the mace’s smash attack (which scales with the height you fall onto the target), you can land hits that no other weapon in the game can match.
The second is heavily armored mobs. Piglin brutes, armored zombies, and the iron-clad enemies inside trial chambers all take noticeably bigger hits per swing when your mace has Breach. Even mobs you wouldn’t normally think of as “armored” sometimes carry hidden armor values that the enchantment chips away at.
Density is the other mace-only enchantment, and it scales damage with the height of your fall rather than punching through armor. Both are useful, but they solve different problems. Density rewards setups where you can guarantee fall height, like elytra dives or scaffolding drops. Breach rewards fights where you’re swinging at well-equipped targets and don’t always have height to play with.
If you only have one mace, your choice depends on use case. For raids on player bases or trial chamber farming, Breach tends to be the safer pick. For one-shot novelty kills from the sky, Density does more work.
There’s also the question of how often you actually fight armored targets. On peaceful difficulty or in long-haul survival builds where you barely engage hostile mobs, neither enchantment matters much. The mace itself isn’t a great everyday tool because it’s slow and heavy compared to a sword. Breach earns its keep specifically in fights against tough opponents, which makes it more of a special-purpose enchantment than a default.
Mace enchantments that pair with Breach
A mace can also take most general weapon enchantments. Useful pairings with Breach:
- Sharpness: adds base damage to every swing
- Smite or Bane of Arthropods: bonus damage to undead or arthropods (these conflict with Sharpness, so pick one)
- Fire Aspect: lights the target on fire
- Knockback: pushes the target back
- Unbreaking and Mending: keep the mace alive across long sessions
Most builds end up with Breach plus Sharpness plus Unbreaking plus Mending as a solid core. Add Fire Aspect if you want crowd-fight utility, or Knockback if you want positional control.
Common mistakes with Breach
A few traps to avoid.
Trying to enchant Breach at the enchanting table. It won’t appear. Skip the table and go straight to trial chambers.
Forgetting the ominous step. A normal trial chamber run with no Bad Omen produces normal vaults, and normal vaults do not roll Breach books. Drink an ominous bottle before you start clearing rooms.
Putting Breach on the wrong weapon. The book exists, but applying it to a sword or axe at the anvil produces the “incompatible” message. If your goal is more damage on a sword, Sharpness is the right tool. It isn’t the same mechanic, but it’s the closest the sword family gets.
Treating Breach as a damage booster. It doesn’t add damage on its own. It reduces armor’s effect on the damage you would already deal. Against an unarmored mob, Breach changes nothing.
Mixing up Density and Breach. New mace users sometimes assume the two are the same enchantment under different names. They are not. Density adds raw damage per block fallen, while Breach reduces armor. They target opposite parts of the damage equation.
Java vs Bedrock
The mace and Breach were added at the same time to both Java and Bedrock in the 1.21 update. The core mechanics are the same on both editions: 15% armor reduction per level, mace-only application, and the ominous vault as the only source of the enchanted book.
Loot tables for ominous vaults can drift slightly between editions during parity passes, so the exact odds of pulling a Breach book versus another enchantment can be a little different. The book exists in both versions, and the in-game effect is the same once it’s on your mace.
Frequently asked questions
What is the max level of Breach in Minecraft?
Breach IV. Each level reduces target armor effectiveness by 15%, so the cap is 60% at level 4.
Can you put Breach on a sword?
No. Breach only works on the mace. If you try to apply a Breach book to a sword at the anvil, the anvil will reject the combination.
Where do you get Breach books?
From ominous vaults inside trial chambers. You need to be under a Bad Omen effect when you enter the chamber so the vaults turn ominous, and you need ominous trial keys (dropped by ominous spawners) to open them.
Does Breach work against the Warden?
Breach reduces armor effectiveness on whatever target you hit, including the Warden. The Warden has additional layers of damage reduction beyond raw armor, so the practical effect is smaller than against a fully armored player, but the enchantment still chips away at the armor-derived portion.
Is Breach better than Density?
They solve different problems. Breach is strongest against armored targets like players in netherite or piglin brutes. Density is strongest when you can guarantee a long fall before the hit, since it adds damage per block fallen. Most maces end up enchanted with one or the other rather than both.
Can Breach stack with Sharpness?
Yes. Sharpness, Smite, and Bane of Arthropods are mutually exclusive with each other on the same weapon, but Breach belongs to a different category and can sit alongside any one of them on a mace.
Does Breach reduce the effect of Protection?
No. Breach only chips away at the target’s armor value. Protection enchantments and Resistance status effects still apply on top of whatever armor remains after the Breach reduction.
Bottom line
If you’re going to spend ominous trial keys on anything, a Breach IV book is one of the highest-value pulls available right now. There’s no other way to bypass armor in Minecraft, and the difference it makes against a well-kitted opponent is hard to overstate.