Soukaku is an A-rank Ice agent in Zenless Zone Zero who specializes in support and anomaly buildup. As a member of Hollow Special Operations Section 6, she wields a battle flag that can buff her entire team's attack and ice damage while providing excellent freezing capabilities. Unlike many other agents, Soukaku can be obtained completely for free by simply playing the game, making her an incredibly accessible and valuable asset for any player. Even in 2026, with numerous new characters having been released, Soukaku remains a top-tier support for mono-ice compositions thanks to her unique kit.

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Role and Playstyle

Soukaku is best played as an off-field support. Her primary job is to use her EX Special Attack, "Fly the Flag," to plant her flag, which grants a significant attack buff to the entire team. After placing the flag, she should be switched out so that other ice units can continue the assault and build up ice anomaly. Her additional ability further increases the team's ice damage by 20% for 22 seconds when she consumes Vortex to activate Fly the Flag. This makes her indispensable in any team focused on ice damage.

She should never be built as a main DPS, as her damage multipliers and on-field capabilities are not designed for that role. Instead, focus on maximizing her attack stat to boost the buff she provides.

Best W-Engines

⭐ Bashful Demon (Best in Slot)

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  • Increases Ice DMG by 15-24%.

  • When launching an EX Special Attack, all squad members' ATK increases by 2-3.2% for 12s, stacking up to 4 times.

  • Perfect synergy with Soukaku's kit, boosting both her personal ice damage and the attack buff from Fly the Flag.

⭐ Kaboom the Cannon (Second Best)

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  • When any friendly unit hits an enemy, all squad members' ATK increases by 2.5-4% for 8s, stacking up to 4 times.

  • Each friendly unit can provide one stack, and the duration is calculated separately.

  • Excellent for all support agents, and easy to activate with Soukaku's multi-hit vortex.

Disc Drive Builds

Soukaku has two main build paths, both using 4-piece Swing Jazz for its energy regeneration and team damage buff.

Build 1: 4pc Swing Jazz + 2pc Polar Metal

  • (2) Swing Jazz: Energy Regen +20%.

  • (4) Swing Jazz: Launching a Chain Attack or Ultimate increases all squad members' DMG by 15% for 12s.

  • (2) Polar Metal: Ice DMG +10%.

Main Stats:

Slot Main Stat
IV ATK
V ATK
VI Energy Regen

Sub Stats Priority:

  1. ATK%

  2. Anomaly Proficiency

  3. Flat ATK

  4. Crit DMG

This build maximizes her ice damage and attack buff. The extra 10% ice damage stacks with her innate 20% ice damage buff from her additional ability.

Build 2: 4pc Swing Jazz + 2pc Hormone Punk

  • (2) Hormone Punk: ATK +10%.

Main Stats:

  • Slot IV: Crit DMG, Crit Rate, or ATK

  • Slot V: ATK

  • Slot VI: Energy Regen

Sub Stats Priority:

  1. ATK%

  2. Anomaly Proficiency

  3. Crit Rate

  4. Crit DMG

This variant focuses on raw attack to make her buff even stronger, while giving more flexibility in main stats. Since her masked state grants 15% crit rate, some crit rolls can be useful if you want a bit more personal damage.

Skill Priority

Always prioritize Soukaku's Core Skill first! It is the key to her support capabilities.

  1. Core Skill – Enhances her Fly the Flag buff.

  2. Special Attack – Used to activate Fly the Flag and buff the team.

  3. Chain Attack – Can transition directly into Fly the Flag and grants Vortex.

  4. Assist – Also transitions into Fly the Flag.

  5. Basic Attack – Only used in Masked State after Ultimate.

  6. Dodge – Low priority as she is off-field most of the time.

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Best Bangboo

Sharkboo

  • When there are 2 or more Ice Attribute characters: Bangboo Chain Attack inflicts 100% more Anomaly Buildup.

  • Ideal for mono-ice teams to apply Freeze more consistently.

Butler

  • When there are 2 or more Victoria Housekeeping Co. characters: Active Skill generates an additional 20% Energy.

  • Best for premium teams with Lycaon and Ellen, providing more energy for Soukaku's buffs.

Penguinboo

  • When there are 2 or more Ice Attribute characters: Bangboo Chain Attack inflicts 60% more Anomaly Buildup.

  • A weaker Sharkboo, but still useful for freeze application.

Team Composition

The optimal team for Soukaku is a mono-ice composition featuring Ellen and Lycaon.

  • Soukaku provides attack and ice damage buffs.

  • Ellen serves as the main DPS.

  • Lycaon offers stun and additional ice resistance shred.

This team unlocks all additional abilities: Soukaku's ice damage buff, Ellen's crit rate boost, and Lycaon's ice resistance reduction. The result is a highly synergistic team that can freeze, stun, and deal massive ice damage.

Conclusion

Soukaku is one of the best A-rank agents in Zenless Zone Zero, and she is completely free to obtain. Her ability to provide long-lasting attack buffs and a 20% ice damage boost makes her a vital part of any ice team. Even as the game evolves in 2026, her core support capabilities remain unmatched for ice compositions. If you have any other ice units, building Soukaku is a no-brainer.