Mualani's Best Weapons Guide in Genshin Impact 2025

As a pro gamer who's spent countless hours diving into the watery depths of Natlan, I can't help but chuckle at how Mualani's shark companion steals the show—honestly, it's like having a pet that does all the heavy hitting while I just chill! 🦈✨ In Genshin Impact's latest updates, Mualani's unique kit revolves around her Shark Bite, which counts as a Normal Attack and scales with HP, making weapon choices a hilarious balancing act between boosting her damage and supporting her team. Since 2025 brought even more refinements to character builds, I've tested every Catalyst under the sun to find the top picks that make her shine, whether you're a free-to-play player or a whale with deep pockets. Let's dive into the best weapons for this hydro powerhouse, complete with stats, effects, and my personal take on why some are pure gold while others are, well, a bit fishy! 😄

🔥 Top Weapons for Mualani: A Detailed Breakdown

Here's a quick overview of the best weapons based on my in-game trials in 2025. I've organized them with pros and cons to keep things spicy—after all, choosing the right weapon can turn Mualani from a minnow into a great white shark in battle!

Now, let's get into the nitty-gritty for each weapon, complete with images and my witty insights. Remember, in 2025, these are all tested with the latest artifact sets like Heart of Depth, and I've ranked them based on how well they synergize with Mualani's shark-fueled antics.

🦈 Surf's Up (Signature Weapon)

Ah, her signature weapon—it's like Mualani and this Catalyst were made for each other, which makes sense since HoYoverse designed it just for her! Surf's Up gives a whopping 88.2% Crit DMG from the sub-stat, plus a 20% HP boost that directly amps her Shark Bite damage. The real kicker? After using her Elemental Skill, she gets up to 48% more Normal Attack DMG from those Scorching Summer stacks. I mean, come on, that's insane—it turns her shark into a tidal wave of destruction! In my tests, pairing this with Vaporize reactions had enemies fleeing faster than I could say "beach day." Plus, at R5, it's even more broken, but even at lower refinements, it's a must-have for serious DPS builds. Here's a peek at this beauty:

• Why it rocks: Massive Crit DMG and HP scaling make her Normal Attacks hit like a truck.

• Downsides: It's a 5-star, so good luck pulling it—I've lost too many Primogems to this one! 😅

• Best for: Main DPS roles where you want Mualani to be the star of the show.

🌊 Ring of Yaxche

For all you free-to-play warriors out there, this 4-star gem is a lifesaver—it's like finding a treasure chest in the ocean depths! Ring of Yaxche offers 41.3% HP sub-stat, which is perfect for Mualani's scaling, and its passive boosts her Normal Attack DMG by up to 32% based on her Max HP. Stack that with Crit DMG artifacts, and she's unstoppable even without a 5-star weapon. I've used this in Abyss runs, and let me tell you, it's hilarious watching her shark chomp through enemies with ease. It's easy to refine to R5, making it accessible for everyone. Check out the icon:

• Why it rocks: High HP and Normal Attack buffs are tailor-made for her kit.

• Downsides: Base ATK is lower than 5-stars, but who cares when the damage is this good?

• Best for: Budget builds or when you're saving your Primogems for other goodies.

💧 Prototype Amber

Now, if you're like me and enjoy playing support while still dealing damage, Prototype Amber is a cheeky choice—think of it as Mualani moonlighting as a healer! This 4-star Catalyst gives 41.3% HP sub-stat, and after her Elemental Burst, it heals the team and regenerates Energy. I've had moments where this saved my co-op squad from wipeouts, all while Mualani's shark is busy biting. It's craftable, so it's super F2P-friendly, and in 2025, it's still a staple for hybrid builds. Here's the icon:

• Why it rocks: Team utility plus HP boost—great for when you want Mualani to be a bit of a hero.

• Downsides: The DPS isn't as high as others, so it's more for fun than min-maxing.

• Best for: Co-op or teams where she shares the spotlight.

🎲 The Widsith

Ah, The Widsith—it's the ultimate gamble weapon! With 55.1% Crit DMG sub-stat, this 4-star Catalyst gives random buffs when Mualani takes the field: a huge ATK%, Elemental DMG, or Elemental Mastery boost. In my experience, when she gets the Elemental buff, it's glorious; but if Recitative (ATK%) pops up, it's useless since she scales with HP. I've laughed and cried over this RNG—it's like rolling dice in a casino! Still, it's solid for reaction teams, especially with Vaporize. Icon time:

• Why it rocks: High Crit DMG and potential for big damage spikes.

• Downsides: The randomness can ruin your day—avoid if you hate luck-based gameplay!

• Best for: Players who love a bit of chaos in their combat.

⚖️ Sacrificial Jade

This one's tricky—it's like Mualani has to play hide-and-seek to get the benefits! Sacrificial Jade offers 36.8% Crit Rate sub-stat, but she doesn't need much since her artifacts cover it. The passive grants 64% HP and 80 Elemental Mastery only if she stays off-field for over 5 seconds. In my tests, timing this right in rotations was a headache, but when it worked, her Vaporize damage soared. Pair it with Heart of Depth artifacts, and it shines, but it's not beginner-friendly. Icon:

• Why it rocks: Big HP and EM boosts for reaction teams.

• Downsides: Requires strict off-field play—annoying if you mess up the rotation.

• Best for: Advanced players who enjoy micromanaging their team.

💎 Tome of the Eternal Flow

Last but not least, this 5-star weapon is a bit of a letdown for Mualani—it's like giving a shark a bicycle! Tome offers 88.2% Crit DMG and 16% HP, but the passive buffs Charged Attacks, which she doesn't use. In my runs, it was just a stat stick, providing raw damage but no synergy. Still, if you have it lying around, it's better than nothing. No special icon needed, but here's a generic one since it's not ideal:

• Why it rocks: High Crit DMG and HP make it decent for raw output.

• Downsides: Passive is wasted—stick to Neuvillette for this one!

• Best for: When you're desperate and have no other options.

🎯 Final Tips from a Pro Gamer

Wrapping up, Mualani's best weapons in 2025 boil down to how you want to play her: go all-in with Surf's Up for max damage, or opt for Ring of Yaxche for a reliable F2P build. Remember to stack HP and Crit stats in artifacts—Heart of Depth is still king—and have fun with those shark bites! As I always say, in Genshin Impact, it's not about the weapon; it's about how you ride the wave. 🌊💪 Now, go out there and make Natlan proud—just watch out for those random Widsith buffs; they've cost me more than one Abyss run! 😂