Accessories and damage tests: where do Attack and Element bonuses apply?
L様Do accessory bonuses increase a weapon’s base stats, or belong to the flat-addition part of the damage formula? We compared actual damage on November 12, 2026. Here are the results, the basics of accessories, and how to use them in MHNow Calculator.
Accessory basics
Accessories occupy a separate equipment slot. Multiple copies of the same type can be owned. Each type has a fixed main effect and up to three randomly refined sub-effects.
The Now Keyring has Defense +30 as its main effect. Forging unlocks after the pre-season story, and tickets come from the acquisition quests: November 12, 2026, 00:00 UTC to December 16, 2026, 23:59 UTC. Refining uses Proofs of Conviction. See the official links below for material and protection rules.
Available sub-effects and provisional maximum values
The official list covers the eight effect types below. The numbers are our current per-slot maximum estimates as of November 12, not officially confirmed caps. We will revise them if higher values are found.
| Sub-effect | Provisional maximum per slot |
|---|---|
| Attack | +40 |
| Defense | +15 |
| Affinity | +4% |
| Fire, Water, Thunder, Ice, Dragon attack | +50 each |
Repeated effect types are supported. For example, three Fire +50 slots would total +150. This is a theoretical example using the values above, not a guarantee of roll probability or maximum rolls in all three slots.
Element test: 546 damage
| Test condition | Value |
|---|---|
| Weapon attack / element | 336 / 228 |
| Flat attack bonus | 211 (skill and sub-parameter bonuses) |
| Flat element bonus | 50 (Dragon Attack Lv1) |
| Skill | Charge Master Lv5 |
| Attack | Charged swing, motion value 41 |
| Accessory | Dragon attack +10 |
| Where the accessory bonus is added | Predicted damage |
|---|---|
| Weapon base element | 550 |
| Flat element addition | 546 |
| Observed in game | 546 |
The result matches the flat element addition model. Adding it to the weapon’s base element would change how modifiers such as Charge Master apply.
Physical test: 688 damage
| Test condition | Value |
|---|---|
| Weapon attack | 2251 |
| Attack increase | 30% |
| Motion value / hitzone | 18 / 130 |
| Accessory | Attack +14 |
| Where the accessory bonus is added | Predicted damage |
|---|---|
| Weapon base attack | 689 |
| Flat attack addition | 688 |
| Observed in game | 688 |
This also matches the flat-addition model. Based on this test, the calculator adds accessory attack in the flat bonus section, not to weapon attack amplified by effects such as Burst.
546 and 688 are damage observations under the test conditions, not the expected values shown in build search results. We have not added motion values or hitzones to the build-search expected-value formula.
How the calculator applies bonuses
Attack contributes to physical damage. Element bonuses apply only to a weapon of the matching element: Fire +50 does not increase another element. Affinity is added to affinity, but is not included in Critical Strength. Defense is displayed and stored but does not increase the expected damage value.
The two tests support the attack and element addition positions described above; they do not independently test every possible skill interaction. The affinity conversion exclusion is the calculator’s current rule.
We also checked that Attack Boost Lv2 (+100) and accessory Attack +100 produce the same expected value, as do Dragon Attack Lv1 and accessory Dragon +50. These are calculator consistency checks, not additional in-game measurements.
Register your accessories and compare builds
Choose an accessory from the search or build screen, then enter its type, optional nickname and sub-effect values. Copies of the same type can be saved separately, edited, duplicated or deleted. Element bonuses that do not match the weapon are dimmed.
Your collection is currently saved in the browser you are using, without automatic synchronization to other browsers or devices. Clearing browser data may remove it. My Sets also retain accessory information, and portrait or landscape build cards can include the selected accessory.
Compare builds in MHNow Calculator →
Sources and test scope
Official accessory help · Official sub-effect list · Development team announcement
Test date: November 12, 2026. Official specifications, our observations and calculator rules are distinguished above. Future updates or additional testing may change the conclusions.
