โšก Harumasa โ€“ Complete Build Guide

๐Ÿ“‹ Character Overview

Harumasa is an S-rank Electric Attack character from Section 6 (H.A.N.D.). He was distributed as a free character to all players during the version 1.4 celebration, making him one of the most accessible S-rank units in the game. Despite being free, Harumasa is a genuinely strong DPS who can compete with limited banner characters.

Harumasa's unique mechanic is Voltaic Edge โ€” a stacking buff that increases his Electric DMG and CRIT Rate with each consecutive hit landed on the same enemy. At max stacks (10), he gains 30% Electric DMG Bonus and 15% CRIT Rate. This rewards long attack chains on a single target, making him excel in boss fights and single-target content. His ultimate is a devastating single-target electric spear throw that deals massive damage, especially during stun windows.

Strengths: Free S-rank for all players (best value in the game); strong single-target damage output competitive with limited 5-stars; no reliance on Anomaly teams โ€” works with standard Attack team templates; excellent stun window burst damage. Weaknesses: Stacking mechanic makes him weaker in multi-target content (loses stacks when switching targets); requires a good stunner to maximize damage; his AOE is limited compared to characters like Zhu Yuan or Ellen Joe.

Base Stats (Lv. 60)

HP7,300
ATK718
DEF510
CRIT Rate5% (+15% at 10 Voltaic Edge stacks)
CRIT DMG50%

๐Ÿ”ง Best W-Engine (Weapon)

PriorityW-EngineRarityDetails
๐Ÿฅ‡ Best Mark of Descent S Harumasa's signature W-Engine. Provides 20% CRIT Rate and a passive that increases Ultimate and EX Special damage by 40% during stun windows. This perfectly aligns with Harumasa's burst playstyle. At R1, it's approximately 22% better than the next option.
๐Ÿฅˆ Alternative The Brimstone S Standard banner S-rank. Provides ATK% stacking on hits (up to 4 stacks = 32% ATK). Works well with Harumasa's multi-hit attack chain. Roughly 88% of Mark of Descent's performance. A great alternative if you have it from the standard banner.
๐Ÿฅ‰ Alternative Cannon Rotor A Battle Pass W-Engine. Provides CRIT Rate and a stacking ATK buff on critical hits. The CRIT Rate substat helps Harumasa reach his optimal CRIT ratio. At R5, approximately 82% of signature performance.
๐Ÿ”„ F2P Best Starlight Engine A Craftable A-rank. Provides ATK% and bonus damage on EX Special usage. At R5, roughly 75% of signature performance. Excellent F2P option that every player can max refine.

๐Ÿ’ฟ Drive Disc Recommendations

Best Set: Thunder Metal (4-Piece) + Woodpecker Electro (2-Piece)

Thunder Metal 4-Piece: Increases Electric DMG by 10%. When the enemy is affected by Shock or Harumasa is at max Voltaic Edge stacks, Electric DMG increases by an additional 25%. This is Harumasa's best set โ€” nearly 100% uptime on the conditional bonus since he maintains max stacks easily in single-target fights.

Woodpecker Electro 2-Piece: Increases CRIT Rate by 8%. Helps Harumasa reach the 70%+ CRIT Rate threshold needed for consistent damage.

Main Stat Priority

SlotMain StatExplanation
Slot IVCRIT RateHarumasa targets 70%+ CRIT Rate. With his core passive giving 15% at max stacks and Woodpecker's 8%, aim for ~50% from gear.
Slot VElectric DMG BonusThe standard for any Electric DPS.
Slot VIATK%ATK% scales well with Harumasa's multi-hit ultimate and EX Special.

Substat Priority

CRIT Rate (until 70%) > CRIT DMG > ATK% > PEN

โญ Skill Priority

PrioritySkillExplanation
S+ Highest Ultimate (Thunder Spear) Harumasa's ultimate is his primary damage tool. During stun windows, it deals massive single-target Electric damage. Level 12 priority โ€” this single skill accounts for roughly 40% of his total damage output.
S Highest EX Special Attack Second highest damage source. Also applies 3 Voltaic Edge stacks instantly. Level 10-12.
A High Chain Attack Used during stun windows after ultimate. Decent damage and extends CC. Level 9-11.
B Medium Basic Attack Used to build Voltaic Edge stacks and generate energy. Level 8-10.

๐Ÿค Team Compositions

๐Ÿฅ‡ Stun Burst (Best)

Harumasa + Qingyi + Nicole

Qingyi's lightning-fast stuns create perfect burst windows for Harumasa. Nicole provides DEF shred to amplify Harumasa's ultimate damage. Rotation: Qingyi stuns โ†’ swap to Nicole โ†’ DEF shred โ†’ swap to Harumasa โ†’ Ultimate โ†’ EX Special โ†’ Chain Attack. This rotation can delete most bosses before the stun window ends.

๐Ÿฅˆ PEN Focus (High Damage)

Harumasa + Lycaon + Rina

Rina provides massive PEN% for the team (up to 36% at high investment), and Lycaon provides Ice RES shred. While Lycaon's ice shred doesn't benefit Harumasa directly, his fast stun application and Rina's PEN buff create a potent damage multiplier for Harumasa's pure Electric damage output.

๐Ÿฅ‰ F2P Starter

Harumasa + Anby + Nicole

Anby is a solid A-rank stunner who applies decent daze. Nicole provides DEF shred. This team clears all story content and can handle Shiyu Defense up to Floor 10 with good investment. Anby's faster energy generation (from her passive) means more frequent EX Specials for Harumasa.

๐ŸŽฎ Playstyle & Rotation

  1. Build Stacks: In the opening phase, use basic attacks and EX Special to build Voltaic Edge stacks to 10. This takes approximately 4-5 seconds of sustained attacking.
  2. Maintain Stacks: Once at 10 stacks, avoid switching targets. Harumasa's stacks reset if he attacks a different enemy. Focus one target down completely before switching.
  3. Stun Prep: Watch the daze bar. When the enemy is at ~70% daze, start positioning for your burst rotation.
  4. Burst Rotation: Stun โ†’ Buff (Nicole DEF shred) โ†’ Ultimate โ†’ EX Special โ†’ Chain Attack. This 3-second rotation deals more damage than 15 seconds of normal attacking.
  5. Repeat: After the stun window ends, rebuild stacks (they reset partially after stun ends) and repeat.

๐Ÿ’ก Energy Management: Harumasa generates 1.5 Energy/s baseline. Run at least one Energy Regen substat on your Drive Discs to ensure you have EX Special ready for every stun window. A good rule of thumb: if your energy bar isn't full when the enemy is stunned, you're losing damage.

โ“ FAQ

Q1: Is Harumasa actually good, or is he just free?

Harumasa is genuinely good. His single-target DPS is competitive with limited S-rank characters at similar investment levels. The main difference is that limited characters often have better AOE capabilities or more team flexibility. In single-target boss content (which is most endgame content), Harumasa performs at approximately 90-95% of the top Attack characters' damage.

Q2: What is Harumasa's best Drive Disc set?

Thunder Metal 4-piece + Woodpecker Electro 2-piece is the best setup. Thunder Metal's conditional 25% Electric DMG bonus has near 100% uptime in single-target fights. For multi-target content (Hollow Zero), consider 2-piece Woodpecker + 2-piece Thunder Metal + 2-piece Polar Metal for a more flexible setup.

Q3: Should I prioritize Harumasa's Mindscapes or his W-Engine?

His signature W-Engine (Mark of Descent) is a much bigger upgrade than M1. Mark of Descent provides approximately 22% more damage, while M1 provides roughly 12%. If you have limited pulls, go for the weapon first. Harumasa is perfectly functional at M0 with his signature or a good alternative W-Engine.

๐Ÿ“– References

  1. Prydwen - Harumasa Build Guide
  2. HoYoverse - Official ZZZ Character Details
  3. HoYoWiki - Harumasa Overview