Alexandrina Sebastiane, widely known as Rina, remains one of the most sophisticated and enduring support units in Zenless Zone Zero. As a centerpiece of the Victoria Housekeeping Co., her utility transcends simple damage buffs. Rina’s kit revolves around the rare and powerful PEN Ratio mechanic, making her a scaling powerhouse as enemy defenses increase in end-game content. This Rina build ZZZ focuses on maximizing her supportive capabilities while ensuring she contributes meaningful Electric anomaly buildup.

Core Mechanics: The Power of PEN Ratio

Understanding Rina requires a deep dive into her Core Passive: Mini Destruction Partner. Unlike typical supports that provide flat Attack bonuses, Rina shares a percentage of her own PEN Ratio with the entire squad. In the current 2026 meta, where high-level enemies possess massive defense stats, ignoring a portion of that defense is mathematically superior to stacking more Attack.

When Rina orders her Bangboo assistants, Drusilla and Anastella, to attack, she grants the team a buff based on 25% of her own PEN Ratio plus a base percentage (up to 30% total cap). The crucial detail many players overlook is that this buff is only active while the puppets are on the field. Therefore, a successful Rina build ZZZ isn't just about stats; it’s about managing the "tether" time of her assistants to ensure the DPS window aligns with the active buff.

Optimal W-Engine Selection for Rina

Choosing the right W-Engine is the foundation of any Rina build. Since her primary contribution scales with PEN Ratio, the engine’s secondary stat and passive effects are paramount.

1. Weeping Cradle (S-Rank Signature)

This remains the BiS (Best-in-Slot) option for Rina. It provides a massive native PEN Ratio secondary stat, which directly feeds into her Core Passive. More importantly, its passive increases the team’s damage against struck targets while Rina is off-field. The Energy Regen bonus ensures that Rina can consistently cast her EX Special Attack, which is her primary tool for maintaining puppet uptime.

2. Unfettered Game Ball (A-Rank)

For players who haven't secured the signature S-Rank engine, the Unfettered Game Ball is an excellent alternative. It focuses on Critical Rate buffs for the team when Rina triggers an attribute counter. While it doesn't provide PEN Ratio, it compensates by easing the Crit requirements for your main DPS, making it a viable budget choice for early to mid-game progression.

3. Slice of Time (A-Rank)

This engine is geared toward Decibel generation and Energy recovery. If your team composition relies heavily on Ultimate-heavy rotations (like those featuring Ellen or Lycaon), Slice of Time helps accelerate the combat rhythm. However, from a pure damage ceiling perspective, it trails behind the Weeping Cradle.

Drive Disc Configurations: Sets and Stats

In the current version of Zenless Zone Zero, Rina’s Drive Disc needs have evolved. You generally have two paths: a pure Support/Energy build or an Anomaly-focused build for Disorder teams.

The Recommended Set: 4-pc Swing Jazz + 2-pc Freedom Blues

This is the most balanced Rina build ZZZ.

  • Swing Jazz (4-piece): Provides much-needed Energy Regen and a team-wide damage buff upon launching a Chain Attack or Ultimate. Since Rina often facilitates Chain Attacks, this set has near 100% uptime on the buff during burst windows.
  • Freedom Blues (2-piece): Boosts Anomaly Proficiency by 30 points. This helps Rina contribute to the Shock status, which synergizes with her Additional Ability, Banquet of Perfection, increasing Shock duration and Electric damage.

The Anomaly Alternative: 4-pc Freedom Blues + 2-pc Swing Jazz

If Rina is paired with Grace or Yanagi in a dedicated Electric/Disorder team, flipping the sets is beneficial. The 4-piece Freedom Blues reduces the enemy’s Anomaly Buildup Resistance, allowing the team to cycle through Shock and other elemental statuses much faster.

Main Stat Priorities

To optimize Rina’s scaling, target the following main stats on your Drive Discs:

  • Partition 4: Anomaly Proficiency or PEN Ratio (if available in future updates/specific sets).
  • Partition 5: Electric DMG Bonus or PEN Ratio.
  • Partition 6: Energy Regeneration Rate (Non-negotiable). Rina’s field presence is short, so she must generate enough energy passively and through her quick-assists to keep her EX Special ready.

Sub-stat Targets

  1. PEN Ratio (Priority 1)
  2. Anomaly Proficiency
  3. ATK%
  4. Crit Rate/Damage (Lower priority unless running a sub-DPS hybrid build)

Skill Upgrade Priority

Resources are finite, and Rina’s impact is heavily concentrated in specific parts of her kit. Focus your upgrades in this order:

  1. Core Skill (Mini Destruction Partner): This is the heart of her build. Upgrading this increases the PEN Ratio conversion rate. It should always be maxed out first.
  2. Special Attack / EX Special Attack: Her EX Special is her most frequent point of contact. It triggers her quick-assist and deals significant Electric damage while making her invulnerable.
  3. Chain Attack & Ultimate: These provide substantial burst and refresh the Swing Jazz buffs.
  4. Basic Attack & Dodge: These are low priority. Rina spends very little time performing basic combos as she is primarily a quick-swap unit.

2026 Meta Team Compositions

Rina’s versatility allows her to fit into several high-tier teams. Her value is highest when paired with characters that share her faction (Victoria Housekeeping) or her attribute (Electric).

1. The Victoria Housekeeping Core (Ellen / Lycaon / Rina)

This remains one of the most stable and high-performing teams. Lycaon provides the Stun and Ice resistance shred, Ellen deals massive burst damage during the stun window, and Rina provides the PEN Ratio buff that allows Ellen’s Ice damage to bypass enemy defenses. The synergy here is perfect, as Rina’s presence activates the Additional Abilities of all three members.

2. The Electric Anomaly / Disorder Team (Yanagi / Grace / Rina)

In this setup, Rina acts as the catalyst. By increasing Shock duration and shredding Electric resistance (via Freedom Blues), she enables Yanagi or Grace to trigger repeated Disorder procs. This team excels in sustained combat against bosses with high HP pools, where the percentage-based damage of Shock and Disorder outscales raw hits.

3. F2P Electric Team (Anton / Anby / Rina)

For players without limited S-Rank DPS units, Rina elevates Anton’s burst phase. Anby provides the necessary stuns, and Rina ensures that Anton’s drill attacks ignore a significant portion of the enemy's armor during the Shocked state.

Advanced Gameplay Tips: The Puppet Management

A common mistake in a Rina build ZZZ is ignoring the physical location of Drusilla and Anastella. Rina’s buffs are distance-sensitive and state-sensitive.

  • The Recall Mechanic: Rina’s basic attack "Shoo the Fool" (holding the attack button) recalls her puppets. While you usually want them out to provide buffs, recalling them is necessary if you need to reposition them quickly or if they are stuck in an animation while the enemy has moved across the arena.
  • Quick Assist Optimization: Rina’s EX Special triggers a Quick Assist. This is your primary way to swap into your main DPS. Ensure your DPS is the next character in the lineup (clockwise) to make this transition seamless.
  • Invulnerability Frames: Rina’s dash and EX Special have generous i-frames (invulnerability frames). Use her to bait out dangerous enemy attacks before swapping to a more fragile DPS character.

Mindscape Cinema: Should You Pull for Duplicates?

While Rina is perfectly functional at M0 (no duplicates), her Mindscape upgrades offer significant quality-of-life improvements.

  • M1 (Dance Duet): Increases the duration the puppets stay on the field by 5.5 seconds and enhances the PEN Ratio buff by 130%. This is her most impactful duplicate, as it almost doubles the consistency of her support.
  • M2 (Master’s Paragon): Provides a self-damage buff. It’s decent but doesn't change her role significantly.
  • M6 (Attendant’s Devotion): Greatly increases the team's Electric damage and Crit damage. At this level, Rina becomes a monster support that can make any Electric unit feel like a top-tier carry.

The Role of Bangboos in a Rina Build

Don't forget the third member of your active party: the Bangboo.

  • Butler: The premium choice for Victoria Housekeeping teams. It provides Energy restoration, which is critical for Rina’s EX Special uptime.
  • Plugboo / Electroboo: Essential for Electric-focused teams. They accelerate Anomaly buildup, making Rina’s Shock duration extension more valuable.

Conclusion: Why Rina is a Long-Term Investment

As of 2026, Rina remains a top-tier support because she solves a problem that many other characters cannot: the defense wall. While flat attack buffs are common, PEN Ratio is a premium stat that becomes more effective as the game grows more difficult. Building Rina requires a focus on her core passive and energy management.

Whether you are running a high-speed Ice team with Ellen or a technical Electric Anomaly team with Yanagi, Rina provides the statistical backbone necessary to clear high-level Shiyu Defense stages with ease. Prioritize her PEN Ratio, master her puppet positioning, and she will remain a staple of your roster for years to come.