Soline
SSR

Soline

Iron Supporter Elysion Infinity Rail
Meta TierC
HP583,734
ATK25,554
DEF3,633
30-second summary of Soline

Soline is a Iron Nikke in the Supporter class, manufactured by Elysion. Stats and skill text below come straight from the game's data.

“A member of InfinityRail, Soline works for the Ark Express. Her high level of confidence can sometimes come off as arrogance.”

Updated: 2026-08-02

Should you pull?

YES. Her extremely strong AoE burst (up to 1320% ATK at Max HP) plus a permanent crit buff make Soline well worth pulling, especially if you have a reliable healer or plan to pair her with Brid to fully exploit the Max HP mechanic.

Review & Analysis

Soline is an Iron Supporter with an SMG, built around a unique Max-HP-gated playstyle. Skill 2 "Grow up!" only activates while she's at full HP, granting a permanent Critical Rate and Critical Damage boost. Her Burst "My Word, My Bond!" hits enemies in range with AoE damage, and if she's still at Max HP when cast, deals a much larger bonus hit to the same targets. Skill 1 "On the Ball!" gives a minor Attack Speed boost after 40 normal attack hits. Pairing her with healers or shields to keep her topped off unlocks her full potential.

Base Stats

HP583,734
ATK25,554
DEF3,633
Max Ammo120
Reload Time2s

Skills

Normal Attack

■ Affects target enemy.
Deals 4.68% of ATK as damage.

On the Ball!Skill 1

■ Activates after 40 basic attack(s). Affects self.
Attack speed ▲ 7.26% for 3 sec.

Grow up!Skill 2

■ Only affects self at Max HP.
Critical Rate ▲ 2% permanently.
Critical Damage ▲ 13.5% permanently.

My Word, My Bond!Burst Skill

■ Affects enemies within attack range.
Deal damage equal to 396% of ATK.
■ Cast on the same enemies when at Max HP.
Deal additional damage equal to 924% of ATK.

Skill Investment Priority

Prioritize Burst (main damage, massively boosted at Max HP) → Skill 2 (permanent Crit buffs, same Max HP condition) → Skill 1 (minor attack speed buff, least important).

4/4/4 (playable) → 7/4/7 → 10/4/10 (final). Max the burst first for its huge AoE damage; raise Skill 2 next to lock in the permanent crit buff early; Skill 1 has the smallest value, so leave it last.

Strengths & Weaknesses

Strengths

  • Her burst deals 396% ATK AoE damage plus another 924% ATK if at Max HP — up to 1320% ATK total AoE, extremely strong compared to other AoE bursts in the data.
  • Skill 2 permanently buffs Critical Rate by 2% and Critical Damage by 13.5% while at Max HP, with no time limit unlike most other buffs.
  • Skill 1 self-buffs attack speed by 7.26% after 40 normal attacks, gradually improving her base DPS over the course of a fight.

Weaknesses

  • Both Skill 2 and the burst's doubled damage require being exactly at Max HP — any chip damage loses both the permanent crit buff and half the burst damage.
  • SMG normal attack deals only 4.68% ATK, the lowest in the Infinity Rail squad, mostly there to fill Skill 1's trigger condition.
  • Heavily dependent on staying at Max HP, so a reliable healer is essential to unlock her full potential.

Overload Priority

Overload priority by weapon type — applies to every Nikke using this weapon.

Sub-statPriorityRolls
ATK 4x
Hit Rate 2-4x
Elemental DMG 2x
Max Ammo 1-2x

Gear →

General Info

Meta Tier
Class
Supporter
Element
Iron
Weapon Type
SMG
Manufacturer
Elysion
Squad
Infinity Rail
Voice Actors
Lee Myung-hee · Lisa Reimold · Inori Minase
Illustrator
Kim Hyung Tae
Release date
4 nov 2022

Recommended Build

Cubes
Bastion Cube / Resilience Cube
Overload (OL) Priority
Increase ATK › Increase Hit Rate › Increase Element Damage Dealt

Suggested by role & weapon. See: Gear · Cubes

Recommended Teams

Soline (Supporter, Iron element) anchors every team below and holds a slot in all five.

Campaign

  • Breakthrough Team: Soline · Alice · Modernia · Liter · Blanc. Alice is a secondary damage dealer, carrying output while Soline is off burst; Modernia is a secondary damage dealer, carrying output while Soline is off burst; Liter cuts cooldown so Soline can burst again sooner; Blanc raises the whole team's damage taken during burst.
  • Sustained Firepower Team: Soline · Scarlet · Drake · Noir · Volume. Scarlet is a secondary damage dealer, carrying output while Soline is off burst; Drake is a secondary damage dealer, carrying output while Soline is off burst; Noir refills ammo and raises magazine size for the team; Volume cuts cooldown so Soline can burst again sooner.

Arena / PvP

  • One-Shot Team: Soline · Scarlet · Blanc · Centi · Jackal. Scarlet is a secondary damage dealer, carrying output while Soline is off burst; Blanc raises the whole team's damage taken during burst; Centi soaks up hits, extending the squad's survival time; Jackal pulls all enemy attacks so Soline is free to deal damage.
  • Sturdy Team: Soline · Alice · Modernia · Noah · Mast. Alice is a secondary damage dealer, carrying output while Soline is off burst; Modernia is a secondary damage dealer, carrying output while Soline is off burst; Noah raises a shield that reduces incoming damage; Mast adds extra critical damage for Soline.

Raid & Interception

  • Long-Sustain Team: Soline · Modernia · Helm · Naga · Liter. Modernia is a secondary damage dealer, carrying output while Soline is off burst; Helm has strong lifesteal, offsetting HP lost in long fights; Naga increases damage dealt on core hits; Liter cuts cooldown so Soline can burst again sooner.
  • Boss-Sticking Team: Soline · Alice · Novel · Noise · Volume. Alice is a secondary damage dealer, carrying output while Soline is off burst; Novel increases enemy damage taken over a long duration; Noise holds aggro almost the entire fight while self-healing; Volume cuts cooldown so Soline can burst again sooner.

Lore & Trivia

“A member of InfinityRail, Soline works for the Ark Express. Her high level of confidence can sometimes come off as arrogance.”

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