Alexandrina Sebastiane Guide and Best Builds for Zenless Zone Zero (ZZZ)

Alexandrina Sebastiane also known as Rina, is an S-Rank Electric Support Agent in Zenless Zone Zero. She specialises in Strike damage, and commands the Bangboos Drusilla and Anastella to deal Electric damage on her behalf. Drusilla and Anastella can also increase the PEN Ratio of other characters in the squad. Alexandrina belongs to the Victoria Housekeeping Co. Faction alongside other characters such as Corin Wickes, Ellen Joe, and Von Lycaon.

A Midsummer Night's Dance: A delicate and gentle melody flows naturally through Rina's movements.
Twisted Fate Concerto: Additional music performed by the dolls, best enjoyed with attentive ears.
New World Symphony: Stirring, powerful, and elegant. Rina is as elegant as ever, even when beating people up.
Silent Sonata Pathetique: The soundtrack that resonates in many people's minds when they see Rina step into the kitchen.

Alexandrina Sebastiane can be pulled at a regular rate from all Channels, excluding the Bangboo Channel. After a total of 300 Signal Searches in the Stable Channel, you may recruit an additional S-Rank Agent of your choice from the options given. This recruit option is only available once per account. These characters include Grace Howard, Nekomata, Koleda Belobog, Soldier 11, and Von Lycaon.

Strengths

• Can be Off-Field a lot and still provide PEN Ratio buffs.
• PEN Ratio Buff Range from Drusilla and Anastella is massive.
• Potential for permanent Electric DMG and PEN Ratio buffs.
• Can fill for Support slot in many Team Compositions, as PEN Ratio benefits everyone.

Weaknesses

• Difficult to keep Drusilla and Anastella on-field for long, due to accidental Shoo the Fool or no M1.
• PEN Ratio buffs are only significant at higher stat thresholds.
• Prefers a High Investment Build and Team Compositions.
• Not many suitable W-Engine alternatives that are free or easy to obtain.

Alexandrina Sebastiane's gameplay primarily revolves around using her Bangboos Drusilla and Anastella to support her squad's damage capabilities by increasing their PEN Ratio.

Important: Combat Bangboos are different from Drusilla and Anastella discussed in this section. Combat Bangboos are obtained through Signal Searches on the Bangboo Channel and can level up, just like Agents and W-Engines.

When Drusilla and Anastella are on the field, they will remain in the area for a set period of time before automatically returning to Rina's side. Drusilla and Anastella's major advantage is that they can continue to execute Rina's attacks while you control another character. While they are on the field, Drusilla and Anastella also provide a PEN Ratio buff to other squad members, increasing their damage output. This is from Rina's Core Passive: Mini Destruction Partner.

If you have Rina's Mindscape Cinema 1: Dance Duet, Drusilla and Anastella can remain on-field for an additional 5.5 seconds. Rina can also manually recall them by holding Basic Attack or Special Attack while she is on the field. If there are other characters in the squad that share the same Attribute or Faction as Rina, she also passively increases the duration of Shock dealt by everyone in the squad. So long as there are Shocked enemies on the field, everyone in the squad will have an increase in Electric DMG output.

To understand how Alexandrina Sebastiane's build works, players should review how her Core Passive: Mini Destruction Partner's PEN Ratio buff cap is reached. At Lv. 1, the calculated formula* wants Rina to have a personal PEN Ratio stat of 96% at most. While not necessarily impossible to reach, it heavily reduces the freedom players may want to have with their W-Engine or Bangboo choices. As a result, if players want to use Rina effectively, they should focus on improving her Core Passive whenever feasible.

By improving Rina's Core Skill Passives and using PEN Ratio-focused Builds, players will have an easier time reaching Mini Destruction Partner's PEN Ratio buff cap of 30%. The additional PEN Ratio bonus can go up to 14.4% at Core Skill Enhancement F. The calculation only takes 25% of Rina's personal PEN Ratio into account, so players should build as much PEN Ratio on Rina to reach the Mini Destruction Partner buff cap.

Therefore, when she receives her Core Skill Enhancement F, the upgraded formula** only needs a personal PEN Ratio stat of 72% maximum, which is significantly more reasonable for players to achieve.

Keep in mind PEN and PEN Ratio are two different stats, and Mini Destruction Partner only scales off Rina's PEN Ratio stat.
While building PEN is good in general, Rina herself is a support Agent who does not have as large of a damage potential like Attack-focused Agents.
As her role suggests, she is better suited to supporting other Agents and increasing their damage potential, because her PEN Ratio buff only affects other squad members, not herself. Players should focus on reaching 72% PEN Ratio first before focusing too much on Rina's other beneficial stats.

Rina's best Bangboo are Butler and Plugboo. Butler is good for Victoria Housekeeping Co. focused teams, while Plugboo is beneficial if you run a squad with strong Electric Agents.

As a Support Agent, Rina is also able to make use of Bangboo with a related B Skill requirement, such as Knightboo. Knightboo is a good and easy-to-use alternative, as its ATK increase formula is based on the Bangboo's investments, not the Agents. Knightboo offers up to an additional 90 ATK (Core 1) or 160 ATK (Core 5) for 10 seconds, which is slightly better compared to other supportive Bangboo.

If players do not have an -Rank Bangboo, other -Rank considerations include Exploreboo, Electroboo, and Booressure.

For Alexandrina, Grace Howard is her most compatible DPS Agent, as Grace Howard can output a lot of Electric DMG herself, in addition to benefiting from the Shock and PEN Ratio bonuses Rina provides.
If players do not have Grace Howard, they can substitute with another Electric Agent such as Anton Ivanov.

If players decide to run Tsukishiro Yanagi instead, they may want to opt for a third Agent with a different Attribute from Electric. This is so Yanagi can benefit both from the Electric DMG buff that Rina provides, as well as the Disorder DMG from the different Attribute.

Other Attribute DPS Agents are also compatible, as every Agent can benefit from PEN Ratio buffs. However, keep in mind you may not see significant damage numbers to begin with, as their effectiveness is based on the enemy's defensive stats in addition to the Agents' personal stats. The more defense a target has, the more beneficial PEN buffs become for an Agent's damage potential. In addition, they may not benefit from the Electric DMG buffs that Rina's Additional Ability provides.

With an Electric focused squad, players can make use of either Qingyi or Anby Demara, as both Stun Agents have their own benefits. Where Qingyi can provide damage buffs for the squad (and increases her own Damage and Daze potential when paired with an Attack Agent), Anby Demara is capable of stunning faster with enough EX Specials (and can work well in teams with either Grace Howard or Anton Ivanov).

Players can also consider Seth Lowell, as he reduces the Anomaly Buildup RES for all Attributes. Rina can also activate his Additional Ability, giving the squad some flexibility with their primary DPS Agent.

Though Tsukishiro Yanagi may be a consideration, keep in mind that Tsukishiro Yanagi will generally have a higher damage output in Disorder DMG teams. As both Rina and Tsukishiro Yanagi share the same Attribute, players may find it difficult to use another Electric Agent due to sacrificing the Disorder DMG from Tsukishiro Yanagi's kit.

If players want a Victoria Housekeeping Co. focused team instead, they can consider either Corin Wickes or Ellen Joe as the main DPS Agent for the squad. However, keep in mind that both characters do not share the same attribute as Rina, so they will not benefit from the Shock effect that she provides in Banquet of Perfection.
As a result, it is better to use a Victoria Housekeeping Co. Stun Agent, such as Von Lycaon, along with an Electric DPS Agent, such as Grace Howard or Anton Ivanov.