HERO GUIDE

Sun Yiwen

SSR

Strategist Lucia · Hero Guide　·　2025.04.23　·　Mage / Infantry / Magic

Intro

Hero Guide – Sun Yiwen

If one were to talk about the most headache-inducing individual for the Sect's masters, that title would undoubtedly belong to Sun Yiwen. With her carefree and independent personality, she spends two-thirds of the day in an extended state of slumber. Moreover, she is able to fall asleep within 3 seconds, whether it's during training or grand ceremonies. If Sun Yiwen weren't an extraordinary disciple who had mastered the Thunder Palm to the utmost, she would have probably been expelled from the Sect and gone back to her hometown a long time ago. In her usual state, Yiwen appears sleepy and non-threatening, but once she steps onto the battlefield, she transforms into a terrifying presence like a thunder god incarnate. If anyone underestimates her due to her daft appearance, they will undoubtedly meet a very miserable end. "Mmm... I still feel a bit tired... I'll just sleep a little more..."

Skill Breakdown

Effects are objective game data

Core 1

Thunder Palms

At the beginning, grant own brigade's troop 6 stack(s) of Evade: There is a(n) 7% chance to avoid taking DMG when attacked for 6 turn(s), reducing by 1 stack per turn, and every 1 turn(s), there is a(n) 45% chance to deal Magic DMG 126% of own BRV to 1 enemy troop, and deal an extra Magic DMG 42% of own BRV to the current target. The Evade chances of Thunder Palms and Yawn... I Forgot are independent of each other.

Lv.4The skill DMG receives a slight bonus based on own ATK, and the activation chance receives a slight bonus based on own COM.Lv.7The skill DMG receives an extra bonus based on own ATK, and the activation chance receives an extra bonus based on own COM.

Lucia：This skill grants Sun Yiwen a high Evasion effect early on, allowing her to dodge the enemy's crucial DMG. If she is positioned at Position 1, she gains an additional DMG boost as well.

Core 2

Thunder Power

After using an active skill, there is a(n) 65% chance to increase own Magic DMG dealt by 7.77% and increase own BRV by 5.32%, up to 3 stack(s), and deal Magic DMG 47.25% of own BRV to all enemy troops, up to 3 time(s) per turn.

Lv.4The skill DMG and skill effect receive a slight bonus based on own ATK and an extra bonus based on own COM.Lv.7The skill DMG and skill effect receive an extra bonus based on own ATK and a large bonus based on own COM.

Lucia：Thunder Power can stack various DMG increase effects and deal AoE DMG, effectively making up for Sun Yiwen's lack of damage output. The enhancement effect is further boosted when she is at Position 1. If the trigger rate of Thunder Power can be effectively increased, it can deal a massive amount of DMG.

Core 3

Yawn... I Forgot

At the beginning, grant own brigade's troop 6 stack(s) of Evade: There is a(n) 7% chance to avoid taking DMG when attacked for 6 turn(s), reducing by 1 stack per turn, and every 1 turn(s), there is a(n) 45% chance to deal Magic DMG 126% of own BRV to 1 enemy troop, and deal an extra Magic DMG 42% of own BRV to the current target. The Evade chances of Yawn... I Forgot and Thunder Palms are independent of each other.

Lucia：Same as Thunder Palms, if it activates Evasion simultaneously with Thunder Palms, the enemy will find it nearly impossible to deal any DMG to Sun Yiwen.

Exclusive Weapon

Xuanwu Gauntlets

Stats

Exclusive Weapon	Not Evolved	Max.
Hero BRV	+40%	+80%
ATK	+11	+21
COM	+5	+9

The Shenxiao martial arts are vast and varied, with hundreds of styles and numerous academies. There was once a master who sought a worthy opponent. With a pair of gauntlets that roared like thunder with each strike, he set up an arena in Tianjing, inviting warriors to spar with him. However, despite many formidable challengers, none could defeat him. Just as he was about to give up, a girl with her eyes closed approached... This is the tale behind Sun Yiwen's weapon, although she claims to have simply fallen asleep and woken up with it.

Not Evolved

EX Weapon Core 1

EX Weapon Effect

After using Thunder Power, increase own damage dealt by 1.77%, up to 3 stack(s). After a basic attack, there is a(n) 90% chance to recover HP 13% of own BRV for own brigade's troop.

Max.

EX Weapon Core 1

EX Weapon Effect

After using Thunder Power, increase own damage dealt by 10.62%, up to 3 stack(s). After a basic attack, there is a(n) 90% chance to recover HP 78% of own BRV for own brigade's troop.

Lucia：Xuanwu Gauntlets further enhances the buff gained when Thunder Power triggers, raising the DMG ceiling even higher. At Position 1, it also grants Sun Yiwen self-healing, reducing her reliance on healers and adding more flexibility to team building.

Recommended Team

Lucia's take

Sun Yiwen

SSR

Mage・Shenxiao Empire

Miranda

SSR

Tactician・Mist Kingdom

Donietta

SSR

Shield・Mist Kingdom

Upgrade Priority

1Thunder Palms (1TP)

2Thunder Power

3Yawn... I Forgot

Sun Yiwen　Thunder Power > Yawn... I Forgot Thunder Palms and Yawn... I Forgot provide Sun Yiwen with ample Evasion, reducing the chance of taking damage. Combined with the recovery effect from her EX Weapon, Xuanwu Gauntlets, Sun Yiwen can rely less on healers for recovery. Thunder Power is a key focus for boosting her output — through various stacking DMG increase effects, every hit from Sun Yiwen gets a noticeable boost. However, note that Sun Yiwen must be positioned at Position 1 to unleash her full potential, so how to effectively protect Position 1 is also a major challenge.

Miranda　Tactical Vision > Bait Trap Miranda can provide the active skill that Sun Yiwen needs most, greatly increasing the trigger frequency of Thunder Power. Tactical Vision, after being enhanced multiple times by Sun Yiwen, can also deal stronger DMG output, while Bait Trap helps Sun Yiwen strengthen her ability against MOR-based Heroes.

Donietta　Ironclad > Mastercraft Donietta can effectively protect Sun Yiwen at Position 1, while also providing a solid boost to Recovery and DMG increase.

Alternative Comps

Alternatively, try the team compositions below: Sun Yiwen + Felicia + Tachibana Chiyo: Felicia can make up for the DMG the lineup lacks while providing effective support, and combined with Tachibana Chiyo's early DMG reduction, the team can secure an advantage in the early game. Sun Yiwen + Felix + Helen: Felix, with high COM, is a DPS that can tank DMG. Combined with Helen's Recovery and output-boosting abilities, the whole team's DPS can achieve solid survivability and DMG together.

Lucia's Summary

Sun Yiwen is a DPS that combines survivability with damage output. Her high Evasion effectively offsets DMG when facing rush teams, and her self-sustained Recovery lets the team swap out some of the Shield Heroes for more flexible support choices — whether pairing her with a secondary DPS or a Tactician to influence the flow of battle, Sun Yiwen's high adaptability lets her thrive on the battlefield. Though she always seems drowsy in such a dangerous place as the battlefield, once she's roused from her slumber, the thunderous roar of Thunder Palms will echo across the battlefield in an instant.

—— Strategist Lucia · Hero Guide

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This Character

Sun YiwenSSR · Mage

531.6

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