---
title: "Bonecrusher"
url: "https://karos-wiki.pages.dev/en/skill-1103"
lang: "en"
description: "Inflicting damage to the enemy with a powerful blow. This attack reduces the aggressiveness of the enemy and temporarily slows down his movements."
---

# Bonecrusher

[Home](https://karos-wiki.pages.dev/en/) › [Skills](https://karos-wiki.pages.dev/en/skills) › [Swordsman](https://karos-wiki.pages.dev/en/class-110)

Inflicting damage to the enemy with a powerful blow. This attack reduces the aggressiveness of the enemy and temporarily slows down his movements.

## Level (5)

| Lv. | Required level | MP cost | Cooldown | Range | Bonus physical attack | Duration | Effects |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | 17 | 15 | 15 s | 2 m | 22 ~ 28 | 15 s | [Attack Speed](https://karos-wiki.pages.dev/en/effect-13) **\-5%** [Movement Speed](https://karos-wiki.pages.dev/en/effect-27) **\-10%** |
| 2 | 21 | 17 | 15 s | 2 m | 30 ~ 37 | 15 s | [Attack Speed](https://karos-wiki.pages.dev/en/effect-13) **\-10%** [Movement Speed](https://karos-wiki.pages.dev/en/effect-27) **\-20%** |
| 3 | 25 | 20 | 15 s | 2 m | 39 ~ 56 | 15 s | [Attack Speed](https://karos-wiki.pages.dev/en/effect-13) **\-15%** [Movement Speed](https://karos-wiki.pages.dev/en/effect-27) **\-30%** |
| 4 | 29 | 21 | 15 s | 2 m | 66 ~ 84 | 15 s | [Attack Speed](https://karos-wiki.pages.dev/en/effect-13) **\-20%** [Movement Speed](https://karos-wiki.pages.dev/en/effect-27) **\-40%** |
| 5 | 33 | 23 | 15 s | 2 m | 98 ~ 112 | 15 s | [Attack Speed](https://karos-wiki.pages.dev/en/effect-13) **\-25%** [Movement Speed](https://karos-wiki.pages.dev/en/effect-27) **\-50%** |

## Prerequisites and weapon

### Prerequisites

[Threaten](https://karos-wiki.pages.dev/en/skill-1002) Lv.1

### Skills that require this (1)

[Phantom Attack](https://karos-wiki.pages.dev/en/skill-1106) Swordsman Lv.1

### Required weapon

Two-handed sword

One of the weapons in the main or off hand must match. Otherwise the game says “You can't use this skill with that weapon”.

### Same family (1)

[Bonecrusher 2](https://karos-wiki.pages.dev/en/skill-2104) Swordmaster

Skills of the same group (usually a base skill and its “2” version). For item buffs the weaker one of the same group is rejected; whether class skills have such a limit is unknown.

Bonecrusher

- **Type:** Damage
- **Class:** [Swordsman](https://karos-wiki.pages.dev/en/class-110)
- **Max lv.:** 5
- **Required level:** 17
- **Required weapon:** Two-handed sword

#### In other languages

tr: Kemik kırıcı · de: Wirbelsäulenbrecher · es: Quiebre Espinal · fr: Kostolom · pl: Kostolem · pt: Bonecrusher · ru: Костолом