The June 24, 2026 maintenance update for My Hero Ultra Rumble was small. One character touched, one bug fixed, one big announcement buried at the bottom. But the patch still managed to split the community, because the buffs landed on a quirk set that players had not even had a chance to pull yet.

My Hero Ultra Rumble: Patch v1.16.2-Rc139 Reference

Feature Layer

Confirmed Specifications & System Overhauls

Quirk Skill α Base grab damage and shield guard break capacity increased from 10 to 30 Quirk Skill β Cooldown reload speed scaled down to 6.0s, 5.0s, and 4.0s based on level Quirk Skill γ Cooldown reload speed trimmed down to 8.0s, 7.0s, and 6.0s based on level Area Control Ranks Adds ten competitive Ace+ tiers stretching from Ace+1 up to Ace+10 All Might Bug Patches a frame rate glitch causing unstable air velocity on his Beta move

Feature Layer

Active Roadmap & Event Progression

Mid-Season Patches Dedicated character balance adjustments deploy officially on July 8, 2026 Lady Nagant Nerfs Severe structural win-rate tuning arrives natively on July 29, 2026 Season 18 Launch Next major battle royale competitive season officially kicks off July 29, 2026

Strike Aizawa, officially named the “Flow Runner” set, went live for rolling immediately after this maintenance ended. If you were planning to pull for him anyway, these buffs landed right in your favor. If you spent Crystals on his original numbers and are now comparing stats, the timing stings a bit.

Strike Aizawa “Flow Runner” Got a Day-One Triple Buff

The data update v1.16.2-Rc139, confirmed by the Ultra Rumble Database on June 24, touched three of Flow Runner Aizawa’s quirk skills across every level.

Quirk Skill α (Binding Cloth: Leap)

This was the most dramatic change. Alpha damage jumped from 10 to 30, and the guard break value matched it at 10 to 30 as well. That is a 200% increase in base damage on the grab. Before this patch, the alpha felt underpowered compared to Aizawa’s other kit options. Now it is actually worth using as an engagement tool.

Quirk Skill β (Binding Cloth: Flow Runner)

Every level across the reload scale got faster. At level 1 through 3, reload time dropped from 7.0 to 6.0 seconds. From levels 4 through 8, it went from 6.0 to 5.0 seconds. At level 9 (max), it now sits at 4.0 seconds, down from 5.0. Penalty reload times moved by the same amounts at each tier.

Quirk Skill γ (Binding Cloth: Instance)

Gamma got the widest cuts. Levels 1 through 3 dropped from 10.0 to 8.0 seconds. Levels 4 through 8 went from 9.0 to 7.0 seconds. At level 9, it came down from 8.0 to 6.0 seconds. Again, penalty reload mirrored every change.

Taken together, these are not cosmetic tweaks. The alpha buff changes how aggressively you can open engagements, and the reload reductions across beta and gamma mean you spend far less time standing still mid-fight. For a Battle Style centered on speed and repositioning, this matters.

The Actual MHUR Patch Notes: What Else Changed

Beyond the Aizawa buffs in the data layer, Bandai Namco’s official maintenance page confirmed two other items for June 24.

New Ace Ranks in Area Control Battle

Ten new rank tiers were added above the existing Ace rank in the Area Control event. The new brackets run from Ace+1 (170 pts) all the way to Ace+10 (350 pts and above), with each tier requiring 20 additional points. All existing rank thresholds below Ace were adjusted slightly to accommodate the new structure.

If you have been sitting near the top of Area Control rankings, your point placement just shifted. Check your current standing because you may have moved brackets.

All Might (Original) Bug Fix

A bug affecting United States of Smash (Quirk Skill β) was resolved. The move’s speed when used in the air was changing inconsistently depending on the player’s FPS setting, meaning PC players at higher frame rates were getting different performance than console players. That inconsistency is now fixed.

Lady Nagant Nerf Is Coming and the Developers Named Her Directly

This is the section that matters most for the broader meta.

Bandai Namco confirmed in the official June 24 patch notes that certain Battle Styles have maintained an unusually high average win rate for more than six months. The developers called it a high priority issue and named Lady Nagant directly as one of the characters targeted for upcoming balance adjustments.

Two dates were announced:

  • July 8 (JST) maintenance will include balance adjustments to several Battle Styles

  • July 29 (JST) maintenance, which is also the start of Season 18, will include further changes including Lady Nagant nerfs

Lady Nagant has been one of the most complained-about characters in MHUR for a long time. The combination of long-range damage, reliable picks, and strong uptime has kept her win rate elevated well above the rest of the roster. Having the developers acknowledge a six-month elevated win rate in official patch notes is unusually direct language from Byking, and signals these are real changes, not vague promises.

If you are currently using Lady Nagant to grind rank or stack Area Control points, these last few weeks of Season 17 are your window. Use them.