Solo Raid kicks off on October 15, and this time the boss's weakness is Electric Code!
Which Nikkes and Favorite Items should you raise to prepare for the Electric Solo Raid?
From Rosanna's Favorite Item Phase 2 to Burst CD reduction/firepower support Nikkes and the new Belorta alt.

Build a Variety of Electric Attackers! Don't Forget Mihara: Bonding Chain
Ahead of the upcoming Electric-weakness Raid, start by checking the investment level of your main Electric attackers such as Cinderella, Neon: Vision Eye, and Ein.
In Solo Raid, which requires five squads, a single attacker cannot handle every battle. Previously built units like Scarlet or Privaty: Unkind Maid can also be brought in as extra firepower depending on team composition. However, rather than spreading materials evenly across all Electric characters, it is better to finish upgrading the primary units you will actually deploy. Since effective attackers vary based on boss gimmicks, building your core roster first and then deciding on further investment once boss details are confirmed is a good approach.
Considering the skill set of the new Nikke, continuous damage (DoT) might be effective against this boss. Among DoT attackers, Mihara: Bonding Chain comes highly recommended. Although she is Fire Code, her high continuous damage using chains allows her to be utilized even in Raids where she lacks Superior Code advantage. She offers flexible squad building as she can function both as a main Burst DPS and as an off-Burst sub-DPS. As an attacker who sees wide use across Raids of various elemental codes, building your Mihara: Bonding Chain is recommended if you are looking to expand your Raid roster.


A Key Investment Target for This Raid: Rosanna's Favorite Item Phase 2
A Nikke to keep an eye on this time is Rosanna with her Favorite Item. Rosanna is expected to act as a key card in Electric Superior Code Raids.
The key is Phase 2 of her Favorite Item. Her Burst applies a damage taken increase debuff to stage targets of Water Code, boosting the entire team's firepower. If firepower support is your goal, you don't need to invest all the way to Phase 3—Phase 2 alone unlocks her core effect. Upgrading Favorite Items takes a considerable amount of time, so make sure to prepare in advance.
Note, however, that Rosanna's Burst cooldown is still 40 seconds, meaning she must be paired with another Burst I unit.

The New Belorta Alt: Focus on Continuous Damage Support and Totem Utility
The announced Belorta: Pumpkin Witch is a Water Code Burst II Supporter that boosts ATK and continuous damage for one ally to her right. She pairs exceptionally well next to a continuous damage attacker, and even without using her own Burst, she provides buffs via entering Full Burst and landing Full Charge attacks, allowing her to serve as a totem.
There are operational limitations: her main buffs target only a single unit, and her 40-second Burst cooldown means she must be fielded alongside another Burst II unit. Nevertheless, pairing her with continuous damage attackers like Mihara: Bonding Chain holds strong promise in this Solo Raid.

Burst I & II Nikkes Worth Building
#. Rouge - A Burst I Unit That Pairs Great with Cinderella
Rouge is a Burst I supporter who reduces Burst cooldown while boosting Cinderella's damage through maximum HP increases. She is a supporter meant to be paired with Electric attacker Cinderella. Placing her in position 2 or 4 also grants attack damage buffs to the attackers on both sides of her.
#. Soline: Frost Ticket - A Cooldown Reduction Unit Who Delivers Even Without Bursting
Soline's alt reduces cooldowns upon entering Full Burst, making her useful as a totem alongside Burst I units lacking CD reduction, such as Favorite Item Miranda or Tove. She is an almost essential supporter for Shotgun squads, making her well worth building.

#. Ade: Agent Bunny - A Burst II Unit Usable Even Without Pierce Attackers
Ade's alt increases attack damage with a 20-second Burst cooldown, allowing her to support Electric attackers like Cinderella in addition to pierce attackers. She serves as a great alternative if your main Burst II units are assigned to other teams. You can prioritize her Burst Skill first and defer upgrading Skill 2 when not running her with pierce attackers.
#. Rosanna: Chic Ocean - Offering Both Continuous Damage Buffs and Damage Taken Increase
Swimsuit Rosanna is a 20-second Burst II unit who boosts team continuous damage and applies a damage taken increase effect to enemies, helping supplement Electric attackers' firepower.

