MHUR TUNING OPTIMIZER

1 · What this is

The MHUR Tuning Optimizer helps you figure out which costume best fits the Tuning effects you actually want, instead of manually checking dozens of costumes one at a time. Pick a character, choose the effects you're after — Max HP+, Quirk Skill Attack Power+, a specific Special Tuning, whatever — and it ranks every costume by how well it can actually fit them, slot by slot, restrictions and all.

It's free, needs no account to use the optimizer, and runs entirely in your browser. An account is only needed to save builds across devices and to publish them to Community Builds.

2 · How to use the app

Finding the right costume

1. Pick your character in panel 1. The dropdown searches as you type and shows each character's portrait, so you can spot them fast.
2. Choose the Tuning effects you want in panel 3. Tick as many as you like — the more you pick, the harder it is for one costume to fit them all, which is exactly what the ranking measures.
3. Use the ☰ button in the search bar to jump straight to a family of effects — Attack, Defense, Max, Reload, Speed+ or Jump. Pick the same one again to clear it, or just type in the box to search freely. Filtering only changes what you're looking at; anything already ticked stays ticked.
4. Optionally add Special Tunings. These act as a hard filter — a costume has to be able to hold them to appear at all. Turning on Fixer lets the optimizer account for Monoma's column doubling.
5. Optionally turn on effect priority. Off, the app maximises your total buff value. On, it protects your #1 effect first, then #2, and so on — see §5 for what that trades away.
6. Read the results. Costumes are ranked by buff value. Open any result to see its full scoring breakdown and the exact placement the score is based on.

Building and sharing a loadout

1. Hit "Create a Build" on a result to open the Build Editor with that costume's slots pre-filled with the recommended placement.
2. Adjust any slot from its dropdown. The app enforces the real in-game rules for you: a card can't go in a slot of the wrong type, Hero/Villain-restricted slots only take matching cards, you can't equip a character's own tunings, and one physical card can't occupy two slots.
3. Use "✨ Fill Slots" to see what still fits in your remaining empty slots, ranked by how strong each effect would end up. Press Add on a row to equip that effect in the best remaining slots automatically.
4. Check "View Tuning Totals" for the real combined percentages — the numbers you'd actually feel in a match.
5. Save it to keep it in My Builds, then optionally Publish it to Community Builds, Copy Link to share it directly, or Download Build Image for a shareable card.

Tip: a published build and its Community listing are the same thing. While a build is published its loadout is locked — name, description and tags stay editable. Unpublish it to change the tunings.

3 · The pages

• Optimizer — the main tool. Pick a character, choose desired effects, see the best costumes for what you want.
• Build Editor — create a build by selecting the tunings for a costume and see the exact stat bonuses you get in total.
• My Builds — builds you've saved. Stored in this browser, and synced to your account when you're signed in.
• Community Builds — builds anyone has published, searchable and filterable by character and tag. Use 🔀 Shuffle to browse them in a fresh random order.
• Recommended — per-character build ideas by archetype. Still a work in progress.

4 · How the numbers work

Tuning level values come from community-sourced data on the effects shown in-game, cross-checked against a public good-to-knows writeup. Percentage-based stats (Attack Power+, Defense+, Reload+, Speed+) stack multiplicatively when you equip more than one — two +2.5% cards compound to +5.0625%, not a flat +5%. Flat stats (jump height, Max HP+/GP+) just add up directly. The "Tuning Totals" button on a build shows the actual combined total for everything currently equipped, Fixer stat doubling included.

5 · How costume scoring works

When you pick a set of desired effects, every costume is ranked by a buff value — a single number measuring how well that costume's slots can actually equip the effects you asked for, with every filled slot assumed to be at its max level. A higher buff value means the costume fits your selected effects better; it's a ranking aid, not an in-game stat. For the real combined percentages, use "Tuning Totals".

The value rewards fitting more of your chosen effects, and rewards stronger slots more heavily — Hero/Villain-restricted slots (which reach level 4 instead of 3) and, for Monoma, the Fixer column doubling both count for more. Special-tuning slots act as a hard filter: a costume must be able to hold them, but they don't add to the score. Whatever build the score describes is exactly the build the app recommends for that costume — the number and the placement can never disagree. Open any costume in the results to see its full scoring breakdown.

Effect priority changes what "best" means. With priority off, placement maximises the total buff value across all your effects. With priority on, the optimiser first gets the biggest possible result for your #1 effect — stacking as many #1 cards into the best slots as physically fit — then optimises #2, then #3, and so on. A high-priority effect can crowd lower ones out of a slot entirely, so turning priority on can lower the total buff value; when it does, the score simply reports the true value of the priority-respecting build it recommends.

6 · Community & contact

Come talk builds, share loadouts, and hear about updates first:

Discord Community, build talk, feedback and help

7 · Support & help

For any support, help, bug reports or feature requests, please use the Discord. It's the fastest way to reach me and the only place I actively track issues.

Worth including when you report something:

• What page you were on, and what you were trying to do.
• Phone or desktop, and which browser.
• A screenshot, if anything looked visually wrong.
• If a number looks off — the character, costume and effects involved.

Balance patches change Tuning values. If you spot a value that no longer matches the game, say so on Discord — that's the quickest way to get it corrected for everyone.

8 · Known limitations

• Per-slot enhancement level isn't tracked — totals assume every filled slot is already at its own max level for that slot (3 normally, 4 for Hero/Villain-restricted slots).
• Special Tuning totals aren't included in the Tuning Totals breakdown — I figured this would be redundant, as most people already know what they do. If enough people ask, I'll implement it.
• Damage numbers aren't shown. The game appears to round each hit up, so a percentage bonus is worth different amounts on different moves; modelling that properly needs per-move hit data I haven't finished collecting.
• Effect values are community-sourced and may drift from the live game after balance updates — I'll update them as quickly as I can.

9 · Credits & disclaimer

Tuning role and class data sourced from ultrarumble.com. Thanks to everyone in the community who has reported values, tested numbers and sent feedback.

This is an unofficial fan project with no affiliation to Bandai Namco, Byking, or the My Hero Ultra Rumble team. All game names, characters and imagery belong to their respective owners.