What Does Breach Do in Minecraft? (Mace Enchantment Explained)
Short answer: Breach is a Mace-exclusive enchantment that reduces the effectiveness of the target's armor by 15% per level. At maximum level (Breach IV), it cancels out 60% of any armor the target is wearing — turning a fully-armored Wither Skeleton or PvP opponent into a much softer target. Breach is one of three Mace-only enchantments (alongside Density and Wind Burst) and they're mutually exclusive: you can only have one of the three on any single Mace.
This guide covers exactly how Breach works, the damage math behind it, where to find Breach enchanted books, and when to pick Breach over Density or Wind Burst.
Quick Answer Table
| Question | Answer |
|---|---|
| What does Breach do? | Reduces target armor effectiveness by 15% per level |
| Maximum level | IV (Breach 4) |
| Max armor reduction | 60% (at Breach IV) |
| Works on? | Mace only — no other weapon |
| Mutually exclusive with | Density, Wind Burst (Mace-exclusive enchant pool) |
| Where to find | Ominous Vault loot in Trial Chambers |
| Available from enchanting table? | No — Trial Chamber loot only |
| Affects smash damage? | Indirectly — armor reduction makes all damage land harder |
How Breach Actually Works
Armor in Minecraft works by absorbing a percentage of incoming damage. A full set of Diamond armor with no enchantments absorbs roughly 80% of incoming melee damage — a 30-damage hit becomes about 6 damage to the target's health pool.
Breach changes that math. Each level of Breach reduces the target's armor effectiveness by 15%, additively:
- Breach I → target armor is 15% less effective
- Breach II → 30% less effective
- Breach III → 45% less effective
- Breach IV → 60% less effective
That same 30-damage hit against full Diamond armor becomes roughly 13 damage with Breach IV — more than double the impact. Against a player in Netherite armor in PvP, Breach IV is the difference between a 2-hit and a 1-hit kill in many scenarios.
Breach Damage Math (Worked Example)
Let's compare a Mace smash attack from 10 blocks high against a target in full Netherite armor (≈80% damage reduction):
- Without Breach: Smash deals 22 base damage → armor blocks 80% → target takes ~4.4 damage
- With Breach IV: Smash deals 22 base damage → armor effectiveness reduced to 32% (80% × 40% remaining) → target takes ~15 damage
That's roughly a 3.4× damage increase against heavily armored targets. The higher the target's armor rating, the more value Breach provides. Against unarmored mobs (like Endermen or Zombies without armor), Breach does nothing — there's no armor to bypass.
Where to Find Breach Enchanted Books
Breach is not available from the enchanting table — it's a Trial Chamber-only enchant. Sources:
- Ominous Vaults in Trial Chambers — main source. Drop chance for enchanted books is roughly 30%, and any of the three Mace enchants is roughly equally likely to be Breach.
- Regular Vaults in Trial Chambers — much lower drop rate but possible at lower levels (Breach I–II usually)
You cannot get Breach from villagers, fishing, or any other loot source. Trial Chambers are the only path.
How to Apply Breach to Your Mace
- Get the Breach enchanted book from a Trial Chamber Vault.
- Place your Mace in slot 1 of an Anvil.
- Place the Breach enchanted book in slot 2.
- If the result Mace already has Density or Wind Burst, the new Breach will replace it — you can only have ONE of the three Mace-exclusive enchants at a time.
- Pay the XP cost (usually 5–10 levels) and take the enchanted Mace from the output slot.
You can stack Breach books to upgrade level (Breach II + Breach II = Breach III), or combine a Breach book with your Mace directly.
Breach vs Density vs Wind Burst — Which to Choose?
This is the most important strategic decision when enchanting a Mace, because you can only pick ONE:
- Pick Breach if: you fight a lot of armored targets — Wither Skeletons, Piglin Brutes, raid villagers, the Wither boss, other players in PvP servers.
- Pick Density if: you fight mostly unarmored or lightly-armored mobs (Zombies, Skeletons, Creepers, Endermen, the Warden) and you have access to elevated platforms for big smashes.
- Pick Wind Burst if: you want infinite mobility and chain smashes — best for survival/exploration and for surviving falls without taking damage.
In practice, many players keep two or three separate Maces — one for each enchant — and pick the right tool for the situation.
Common Questions
Does Breach work on Wither armor?
Yes. The Wither has natural damage resistance equivalent to armor, and Breach reduces that resistance. Combined with Smite V, a Breach Mace is the fastest way to defeat the Wither.
Does Breach work in PvP?
Yes — and it's devastating. Players in Netherite armor are normally tanky, but Breach IV makes 1-hit kills possible from modest fall heights. Most competitive PvP servers consider Mace+Breach the strongest melee combination.
Can I combine Breach with Sharpness?
Yes. Breach reduces armor effectiveness, while Sharpness adds direct damage — they stack well. Note that Sharpness and Smite cannot coexist (standard rule), but either works alongside Breach.
What if I put Density on a Mace that has Breach?
The new enchantment replaces the old one. You'll lose the Breach. Always confirm in the Anvil preview before paying the XP.
Does Breach affect armor durability?
No. Breach only reduces armor's damage absorption — it doesn't increase the rate at which armor breaks.
Putting It All Together
Breach is the Mace enchant of choice when fighting heavily-armored targets. The 15%-per-level math means that against a fully-armored opponent, Breach IV roughly triples your effective damage. It can only be found in Trial Chambers, primarily in Ominous Vaults — see our guide to getting a Mace for the full Trial Chamber farming workflow, and our guide to finding Trial Chambers if you haven't located one yet.
If you're running a survival server and want Trial Chamber farming progress to continue even when you're offline, a dedicated server is the right call — see our best Minecraft server hosting comparison.
That's what Breach does in Minecraft. Armor goes down, damage goes up, Wither dies faster. Happy enchanting!