Blizzard Entertainment regularly pushes out updates for its popular hero FPS Overwatch, but this one may annoy fans who’ve been enjoying one of the game’s most recently added heroes.

Mizuki is getting a big nerf

Mizuki was one of Overwatch Season 1’s five new heroes that were released earlier this year alongside the new tank Domina, two new damage heroes in Emre and Anran, and fellow support hero Jetpack Cat. His kit relies on AOE healing, which incentivizes him to stay close to his teammates in order to output as much healing as possible. Kekkai Sanctuary is his powerful ultimate ability and, once activated, it puts up a large cylindrical wall that blocks all damage coming from outside and above it, proving a useful counter against ultimates from heroes like Sojourn, Pharah, and Bastion.

Overwatch is celebrating its 10th anniversary, and to mark the occasion, it’s launching a new anniversary event that has some fans up in arms over its unlockable rewards. As the update rolled out today, however, it came with a midseason patch that made some important changes to Mizuki and several other heroes.

Kekkai sanctuary healing and duration reduced

Overwatch‘s new midseason patch is implementing a heavy nerf to Mizuki’s ultimate ability, Kekkai Sanctuary. The ultimate’s duration has been reduced by one second, which may not seem significant, but in a competitive game like Overwatch, every second is critical. The healing that Kekkai Sanctuary provides has also been dropped from 50 to 40 healing per second.

While these stat nerfs are surely disappointing for Mizuki players, the new update comes with a small silver lining that changes how Mizuki’s ultimate behaves. Whereas before the change, enemy projectiles coming from outside Kekkai Sanctuary were blocked, now enemy fire exiting the ultimate is also absorbed. This creates a new way Mizuki players can use the ultimate, as they can drop it on an enemy team that’s grouped up to temporarily void their damage output, forcing them to reposition. This way, the ultimate isn’t only effective as a reactionary defensive ability but can now also be used as a sort of area denial tool, forcing enemies to take up time finding different angles around the giant green cylinder. This can also make opponents feel pressured to move forward out of the ultimate toward Mizuki’s team, which can put opponents at a disadvantage if they’re not all ready to push.

Mizuki isn’t the only new hero to get hit with a nerf. Emre’s grenades have a slightly smaller explosion radius, and his Siphon Blaster healing has been dropped down to 60% from 80%. The newest hero on the roster, Season 2’s Sierra, also suffered a midseason nerf to her primary weapon.

The midseason patch does come with one big positive for Overwatch players in that the time it takes to level heroes has been decreased. One of the complaints of fans was it was taking too long to reap the rewards of leveling heroes, so it’s good to know that players will be unlocking these rewards and beefing up their profiles a bit quicker now.

Overwatch is available on Xbox, PlayStation, PC, and Nintendo Switch.