Zenless Zone Zero S-Rank W-Engines: Every Top-Tier Weapon and Who to Use Them On in 2026

I still remember the electric rush of pulling my first S-Rank W-Engine in Zenless Zone Zero. The screen lit up, the agent transformation felt immediate—and suddenly, my squad was shredding through Ethereal hordes like never before. Three years into New Eridu's wild ride, W-Engines remain the beating heart of every powerful build. These colorful, toy-like cores aren’t just cosmetic; they’re the equivalent of five-star weapons in Genshin Impact or coveted Light Cones in Honkai: Star Rail. The difference between an underleveled agent and a fully optimized one often comes down to having the right S-Rank W-Engine equipped. But with a growing roster of characters and a Signal Search that loves to test your patience, how do you know which of these rare beauties truly deserves your resources?

Let’s face it: grinding for Master Tapes and Encrypted Master Tapes can feel like a part-time job. So when fortune finally smiles and you land an S-Rank, you need to act fast and pair it perfectly. Have you ever accidentally stuck a Support W-Engine on an Attack agent? I’ve been there—and the wasted potential stings more than a Thanatos spin attack. To spare you that heartbreak, I’m diving deep into every currently available S-Rank W-Engine, breaking down their stats, triggered effects, and optimal specialty matchups. Whether you’re a day-one Proxy or a fresh recruit in 2026, this guide will help you turn your squad into a Hallow-clearing machine.

🗡️ The S-Rank lineup at a glance

Before we dissect each piece, here’s a quick overview of the S-Rank W-Engines that dominate the meta today:

• Weeping Cradle (Support)

• Steel Cushion (Attack)

• The Brimstone (Attack)

• Deep Sea Visitor (Attack)

• The Restrained (Stun)

• Fusion Compiler (Anomaly)

• Hellfire Gears (Stun)

Notice a trend? Attack-specialty agents are seriously spoiled. But don’t worry—the other roles have their own game-changers. Let’s break them down one by one, complete with their in-game looks so you can recognise them the moment they pop out of that Signal Search.

🔧 Weeping Cradle

The Weeping Cradle is my personal go-to for turning a decent Support agent into an indispensable team battery. Tuned exclusively for the Support specialty, its passive ability “Punishment” is a masterclass in off-field utility. While the equipper hangs back, Energy Regen jumps by 0.6 per second—sounds small, but it adds up rapidly. The real magic happens when the equipped agent strikes a target: the entire squad’s damage against that enemy rises by 10% for three seconds. Even better, this effect escalates by an additional 1.7% every 0.5 seconds, maxing out at a juicy 10.2% extra increase. Just remember, repeated hits only refresh the duration—the DMG buff itself won’t stack up further. If your team thrives on quick-swap combos and you rely on a Support like Soukaku or Nicole, this W-Engine is a must.

🐾 Steel Cushion

For fans of up-close-and-personal brawlers, nothing satisfies like the Steel Cushion. Restricted to Attack agents, its “Metal Cat Claws” effect screams physical mayhem. The equipper gains a flat 20% increase to Physical DMG—right out of the gate that’s a significant boost. But the real highlight? When you manage to attack an enemy from behind, your damage skyrockets by an additional 25%. Sounds situational? Not when you master dodge-counters and position behind staggered bosses. I’ve watched Billy and Nekomata absolutely demolish elite enemies with this equipped. Is it the most flexible S-Rank? No. But in the right hands, it’s a backstabber’s dream.

🔥 The Brimstone

The Brimstone is often labeled the “safe” choice for Attack agents—and that’s precisely why I recommend it for new Proxies. Its passive, “Scorching Breath,” gradually builds your ATK like a forge heating up. Every time you land a basic attack, dash attack, or dodge counter, ATK increases by 2.5% for 8 seconds, stacking up to eight times. The trigger rate is once every 0.5 seconds, and each stack’s duration is calculated separately, which means you can maintain a near-permanent 20% ATK surge in extended fights. This effect is universally useful, making it a stellar fit for any main DPS you plan to field heavily. Soldier 11, Ellen, even Zhu Yuan—they all shine brighter with The Brimstone’s steady pressure.

❄️ Deep Sea Visitor

If your team revolves around Ice damage, you’re probably hunting for this one. Deep Sea Visitor’s “Lord of the Seas” passive hands out a permanent 25% Ice DMG increase—already a massive advantage for agents like Ellen Joe or (if you were lucky) Lycaon’s heavy hits. But it doesn’t stop there. Hitting an enemy with a basic attack boosts the equipper’s crit rate by 10% for 8 seconds. Then, when you deal Ice DMG through a dash attack, you gain an additional 10% crit rate for a lengthy 15 seconds. Both effects operate independently, so a well-timed combo can grant a combined 20% crit rate spike. Have you ever watched an Ice-specialist crit for back-to-back kills? With this W-Engine, that becomes your new normal.

⛓️ The Restrained

Stun agents are unsung heroes, and The Restrained makes sure they get the applause they deserve. Exclusive to Stun specialty, its “Binding Chains” ability amplifies both DMG and Daze from Basic Attacks by 6% per hit for eight seconds, stacking up to five times. This effect can trigger only once per skill use, but with a rapid-fire basic attack string, you’ll hit max stacks in no time. What does that mean in practice? Your Stun agent not only locks down enemies faster but also contributes noticeable chip damage along the way. I pair this with Koleda or Anby, and barely have to worry about DPS downtime because the enemy is perpetually dazed and taking enhanced punishment.

🔮 Fusion Compiler

Anomaly agents thrive on triggering Attribute Anomalies, and the Fusion Compiler is their holy grail. It starts with a welcome 12% ATK increase, but the “Data Flood” effect is where things get spicy. Each time you use a Special Attack or EX Special Attack, the equipper’s Anomaly Proficiency jumps by 25 for eight seconds, stacking up to three times. Since Anomaly Proficiency directly scales the damage and effect of elemental reactions like Shock, Corruption, or Freeze, a max-stack +75 proficiency can shorten battles dramatically. I’ve seen Grace suck entire waves into black holes of corruption thanks to this engine. Keep your Special Attacks flowing, and the anomalies will follow.

⚙️ Hellfire Gears

Last but definitely not least, Hellfire Gears carves out a niche for Stun agents who love to dip in and out of the action. Much like Weeping Cradle, it grants a 0.6/s Energy Regen while off-field. The kicker? When you execute an EX Special Attack, your Impact shoots up by 10% for 10 seconds, stacking twice. Impact dictates how quickly you accumulate Daze on enemies, so two stacks mean breakneck stun cycles. Toss this on a character like Lycaon (if you lean into Stun) or any future off-field Stun specialist, and watch bosses spend more time on their knees than attacking. It’s a tactician’s delight.

📡 How to get your hands on them

All these S-Rank gems are pulled from the Signal Search system using Master Tapes or Encrypted Master Tapes. Rates haven’t changed dramatically since launch, but the W-Engine banner (Star-Studded Cast) remains your best bet for targeting a specific piece. I always advise saving your Encrypted Master Tapes for limited W-Engine banners that align with your most-used agent—general pool pulls are a gamble that can leave you with a weapon your roster can’t currently exploit.

By now, you’ve seen how each S-Rank W-Engine can redefine a playstyle. Do you still have a W-Engine sitting in inventory, unlevelled and overlooked? Maybe it’s time to give it the spotlight. With the right match, even a single S-Rank can carry your entire account through the toughest Hollow Zero expeditions. Good luck, Proxy—may your Signal Searches sparkle gold!