Genshin Impact: How To Beat Every Defense Scenario In Mutual Security Enhancing Simulation (2025)

If you've explored the world of Genshin Impact, done dailies, or beaten Spiral Abyss, you're most likely already familiar with the monolith defense mode. In this mode, the enemies spawning on the battlefield will directly target the monolith, and you'll have to prevent it from getting destroyed.

The defense scenario game mode in the Mutual Security Enhancing Simulation event features an upgraded version of the same style where you have to use mobs to defend the monoliths, and here's how you can easily beat each stage.

Build An AA Umbrella Guide (Stage One)

The first stage opens up with a path on the left side and the middle, but it's relatively easy to get you used to the mechanics. You'll only have the Sweeping Whirlwind skill available here, and it's also the best one to use. The battle starts with you having a Pyro Slime, Electro Cicin, and Pyro Mechanism.

The best setup for the start is placing the Mechanism on the very edge of the circle between both the monoliths so that you can defend them both at the same time. You can also place the Electro Cicins near the edge on the Left Flank and Pyro Slimes behind the monolith in the center. This will help you easily deal with the first wave.

For the second and third waves, you'd want to place most of your units in the center since this is where most enemies attack. You should easily be able to beat this stage past this point since you'll also have the skill to help you defeat the smaller mobs.

Overwhelming Air Superiority Guide (Stage Two)

This round starts with you having quite a bunch of units, but there will be a lot of enemies coming from the first wave itself as well. You can place the Pyro Kairagi and Cryo Specter in the center while placing the Nobushi and the Pyro mine on the right side. This mine will be useful in the subsequent waves.

This should be enough to clear the first wave for you, and you can also use the Blazing leadership skill on the Mitachurl in the center to keep your units in a healthier position for subsequent waves. Moreover, you should place all the Mechanisms you get from support beacons in the middle of the two monoliths like in the first stage.

You'll want as many mines as possible in the center for the third wave as this has some tanky Ruin Guards and quick Hydro Mimics.

Force Concentration Guide (Stage Three)

This stage is pretty straightforward at the start. You'd want to place the Mitachurl and Hilichurl on the left flank while the Seahorse and Hydro Cicins go on the right. It's important to place units like this since the Seahorse won't be able to damage the slimes and Cicins are required to target the Cryo Specter on the right.

Your seahorse will likely be defeated in the first wave, but you can keep it alive a little longer by using your skill on the Nobushi. Moreover, if you get a Cryo Mechanism, it should be placed on the Left Flank since you'll get the most value out of it there due to Electro and Pyro enemies in the subsequent waves.

For the second wave, you'd want most of your firepower on the Left Flank while you can use the two skill charges to lower Nobushi's health on the right. After that, you'll have to balance everything out on the final wave.

Flexible Defensive Countermeasures Guide (Stage Four)

After clearing the third stage, this one will feel a lot simpler and easier. Place the Electro Mechanism in the middle once again with the Cryo Specter near the left flank. You can place the rest of the enemies in the center to counter the tanky Eremites from the enemies.

For the second and third waves, it's recommended to place most of your enemies in the center so that they can support both sides since the enemies only come from one side in each wave.

Stronghold Firepower Response (Stage Five)

As the name might already suggest, this stage relies on building up your team for one final wave. In the first two waves, you'll only be getting enemies from one portal, which makes it significantly easier to suppress them. However, your main goal here should be to lose as few units as possible during the fight.

For the first and second waves respectively, you can place all the units in the center and the Right Flank. However, it's recommended to place them a little to the middle so that they can aid the other side in the third wave if needed. If you play this round correctly, especially with the healing skill, you'll most likely max out on units before the third wave, giving you an easy win.