Monster Hunter Wiki

Weapon Mechanics

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Topics: Weapon TypesWeapon Mechanics

Weapon Types: Sword and ShieldDual BladesGreat SwordLong SwordHammer
Hunting HornLanceGunlanceSwitch AxeCharge BladeInsect GlaiveTonfa
Light BowgunMedium BowgunHeavy BowgunBow

Attack Power

The Attack Power is the raw damage done without the aid of elements or secondary status effects. It is important to favor raw damage over elemental damage and secondary statuses because raw damage is universal and has more weight in most cases (100 points of raw damage is worth more than 100 points of element damage).

Attack power also effects how an attack is blocked. The difference is most noted in the Sword and Shield. A weapon like the Hunter's Knife will likely have a large reel, a huge decrease in stamina, and a larger health loss when blocking an attack than a much stronger Sword and Shield, which will have a small reel, a smaller decrease and stamina, and little to no loss in health. This was discovered during an armorless test.


Affinity is a hunters chance to deal either more or less damage with a weapon attack. It is measured in percentages, and varies based on weapons, armor, and skills. A positive affinity means attacks have that percentage chance to use 125% attack power, while a negative affinity is the chance to use 75% attack power. Some monsters can cause a status condition which lowers affinity temporarily. Note: Affinity doesn't effect element, shelling, crag S or clust S; however, affinity does affect status-inflicting weaponry. While they may both appear under weapon element, they are considered separate in comparison to one another as far as the game coding and mechanics are concerned.


Sharpness is the sharpness of a melee weapon, represented by the color of the little blade near the clock on the game interface. It is a very simple scalar variable which increases attack power by a percentage.

MHFU: Purple: 1.50, White: 1.30, Blue: 1.25, Green: 1.125, Yellow 1.00, Orange: 0.75, and Red is 0.50.

MH3: Purple: 1.50, White: 1.32, Blue: 1.20, Green: 1.05, Yellow: 1.00, Orange: 0.75, and Red is 0.50.

MH3U: Purple: 1.44, White: 1.32, Blue: 1.20, Green: 1.05, Yellow: 1.00, Orange: 0.75, and Red is 0.50.

MH4: Purple: 1.45, White 1.32, Blue: 1.20, Green: 1.05, Yellow: 1.00, Orange: 0.75, and Red is 0.50.

Note - These Numbers represent the amount of your weapons attack power which is used when calculating damage, not straight damage.

Sharpness also affects elemental damage similarly.

MHFU, MH3, MH3U, and MH4: Purple: 1.20, White: 1.125, Blue: 1.0625, Green: 1.0, Yellow: 0.75, Orange: 0.50, and Red is 0.25.

Also, the sharpness influences the chance of your weapon bounce on hard body parts of a monster. A Gravios back shell for example can only be penetrated by white, or not even purple when on a G-ranked quest. The head of a Barroth is only penetratable with blue or above, while elsewhere on its body green sharpness will work. Additionally, bouncing will prevent you from chaining attacks.


Like armor pieces, weapons may or may not have empty slots where decoration jewels can be placed to supplement a skill tree.

Damage Formula

To calculate the damage for weapons in Monster Hunter 3 go here Monster Hunter 3 Damage Formula.

On this Page, you will find the exact description on how damage you deal with your weapon: MHFU Monster Damage Formula. (Under construction)


Main Article: Element

Elements are the secondary damage that is done. Like raw damage, it is done directly. How much the element effects a monster is dependent on the monster's weaknesses. In MH3, monster's element attacks now inflict status conditions, known as Blights. The elements are fire, water, thunder, dragon and ice. Each of these Blights will cause different effects and can be increased or decreased due to weaknesses and resistances. Each link directs to a page with more specific information.

Special Attack Attribute

The types of special attack attributes that weapons may have.

Element Description Image
Poison Poison is a secondary status effect that affects monsters or hunters by gradually draining health over a certain amount of time. Different monsters are affected differently by it. A monster is poisoned when purple bubbles rise from atop its head. Poison can be extracted from a monster and implemented into weapons. If an Elder Dragon that has an aura (Daora, Teostra, and Lunastra) is poisoned, its aura will be gone until the poison effect has ended. This will also disable the Chameleos' invisibility. GreatFroggiPoisonsPrey
Sleep Some monsters have the potential to put hunters into sleep. This allows them to get a free hit. The effects of sleeping can be increased or decreased with proper armor skills. Being hit by a monster or another hunter will instantly awaken anything that is sleeping. Sleep is also a secondary status effect that can be caused to enemies by the use of weapons or items. While an enemy sleeps, things such as sharpening, drinking potions, eating meat, or even attacking the sleeping monster can be done.

It is worth noting that while a monster sleeps, it regains lost health. However, an added advantage of putting a monster to sleep is that the next attack dealt to it deals triple damage. Placing and detonating bombs on a sleeping enemy will give it a devastating wake-up call.

Sleep Pokaradon
Paralysis Paralysis is a secondary status effect. This immobilizes a hunter or monster for an amount of time, allowing for free hits without fear of getting hit from either side. A hunter is paralyzed when he or she falls down frantically and yellow shock waves pass through the body. Paralysis duration can be increased or decreased by wearing armor with the appropriate skill. A creature is paralyzed when it is hunched over, and yellow shock waves pass through its body. A monster can be paralyzed by using a weapon or an item. Each monster has its own resistance to paralysis, and some stay longer than others in the stunned state. Monster img 11 03
KO Also called dizzied or stunned. When a monster lands several hits in succession, the hunter may become stunned. He or she becomes immobile for a short time, allowing the monster to get a free hit. A hunter is knocked out when he stands unbalanced with stars circling his head. The knockout time can be diminished if by rapidly rotating the analog stick and pressing the dodge/roll button repeatedly. 

In Monster Hunter 2, CAPCOM has implemented the Knockout skill in Hammers and Hunting Horns. Attacks on a monster's head will cause a yellow shockwave, and when this is done enough times, the monsters will become stunned, much like a hunter would. Monsters are helpless and vulnerable when KO'd, and most of them will fall over, allowing certain parts to be hit more easily.

In Monster Hunter Tri and subsequent titles, Some weapons have been given their own special stun attacks, such as the Sword & Shield's shield bash, or the Great Sword's side slap attack.

Slime Slime is an element introduced in Monster Hunter 3 Ultimate. Only the Brachydios can use Slime attacks, and being hit with one will induce Slimeblight. During Slimeblight, the hunter is covered with a green goo, and if the Brachydios hits with another Slime attack, the hunter will explode and take increased damage. Slimeblight will even detonate if the attack is blocked, so it is important to remove the status by rolling or by using Deodorant. In addition, Slimeblight will slowly change from green to red over time, and if it is not removed, the hunter will explode automatically.

When hitting a monster with a Slime element weapon, the attack impact will light up with three different colors, starting from green to yellow to red. When it reaches red and a few more hits are made, the next hit will cause an explosion, dealing blast damage on the target monster.

MH3G-Bracchidios Screenshot 02

See also

Status Effects

Elemental Resistances

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