Cyno excels in teams where he can constantly trigger Electro reactions due to his fast attack speed and Electro infusion capabilities. His kit makes him a formidable on-field DPS, especially when his abilities are well-synced with the team's elemental applications.
Cyno, the General Mahamatra of the Akademiya in Sumeru, is an Electro polearm user with a focus on high-speed, continuous Electro damage. Here’s how to optimize his build:
Suggested Weapons 
•Staff of the Scarlet Sands: This weapon provides CRIT Rate, which Cyno needs, and increases ATK based on the wielder's Elemental Mastery, complementing his kit that benefits from EM for reactions.
•Primordial Jade Winged-Spear: Offers high base ATK and CRIT Rate, making it excellent for Cyno's damage output, with an added bonus for ATK% on hit.
•Deathmatch: Available from the Battle Pass, it gives CRIT Rate and increases ATK and DEF when facing one or more enemies, which is often the case in Genshin's combat scenarios.
•White Tassel: A 3-star option that's surprisingly effective for Cyno, offering CRIT Rate and increased normal attack damage, which is beneficial given his playstyle.
Artifacts
•4-piece Thundering Fury: Enhances Electro-related reactions, reduces Elemental Skill cooldown upon triggering an Electro reaction, and works well with Cyno's quick Electro application.
•2-piece Thundering Fury + 2-piece Gladiator's Finale or 2-piece Thundersoother: Combining Electro DMG Bonus with an ATK increase or more Electro DMG, this setup provides a balance between Cyno's Electro capabilities and overall damage.
•4-piece Gilded Dreams: If focusing on elemental reactions, this set can significantly boost his ATK or Elemental Mastery based on the team's elemental diversity, which can be very effective in reaction-based teams.
Stat Priorities
•Sands: ATK% or Elemental Mastery if focusing on reactions.
•Goblet: Electro DMG Bonus
•Circlet: CRIT Rate or CRIT DMG, aiming for a high CRIT Ratio.
Substats to Look For
•CRIT Rate
•CRIT DMG
•ATK%
•Elemental Mastery (for reaction teams)
Talent Priority
•Elemental Burst (Q) - Pactsworn Pathclearer: Transforms Cyno, significantly increasing his Electro DMG and resistance to interruption, crucial for his DPS.
•Normal Attack (Claw and Thunder): Since his damage output heavily relies on his normal and charged attacks infused with Electro during his burst.
•Elemental Skill (E) - Secret Rite: Chasmic Soulfarer: Important for its damage, extension of his burst duration, and generation of particles for energy recharge.
Team Composition
•Dendro Teams: Pair with Dendro characters like Nahida or Dendro Traveler for Aggravate reactions which amplify Electro damage.
•Support for Reactions: Fischl for continuous off-field Electro application, or Beidou for her burst which synergizes well with Cyno's rapid attacks.
•Anemo Support: An Anemo user like Sucrose or Kazuha can group enemies, provide Elemental Mastery buffs, and enable Swirl reactions.
•Healer/Shielder: Zhongli for his strong shields, or a healer like Bennett who can also provide an ATK buff.
Playstyle Tips 
•Burst Management: Use his Elemental Burst when you have enough energy for optimal uptime. His burst mode greatly enhances his normal attacks.
•Combo Continuity: During his burst, maintain a steady stream of attacks to keep the Electro aura and take advantage of his enhanced capabilities.
•Reaction Triggering: Position Cyno to take full advantage of elemental reactions, especially with Dendro for Aggravate, which will significantly boost his Electro damage.
•Skill Timing: Use his Elemental Skill to extend the duration of his burst or to reposition quickly in combat.
