Yelan

• Amazing Sub-DPS character.
• Her Talents help fill in the downtime of Main DPS characters.
• Elemental Burst directly increases an active character's personal DMG.

Yelans best weapon is her sig Aqua Simulacra

Some Other Good Weapons for her are

• Elegy for the End
• Favonius Warbow
• Slingshot

Her Best Artifact Set Is Emblem of Severed Fate

Artifact Main Stats

• Sands: HP% or Energy Recharge
• Goblet: Hydro DMG Bonus
• Circlet: CRIT Rate or CRIT DMG

Artifact Substats

Energy Recharge, HP%, CRIT Rate or CRIT DMG

Some Good Teams are

Hyperbloom

• Yelan
• Kuki Shinobu
• Kokomi
• Alhathiam

Vaporize

• Yelan
• Hu Tao
• Zhongli
• Xingqiu

Yelan Talent Priority

1. Elemental Burst
2. Elemental Skill
3. Normal Attack

Yelan Ascension Materials

• Starconch ×168
• Varunada Lazurite Sliver ×1
• Varunada Lazurite Fragment ×9
• Varunada Lazurite Chunk ×9
• Varunada Lazurite Gemstone ×6
• Recruit's Insignia ×18
• Sergeant's Insignia ×30
• Lieutenant's Insignia ×36
• eora ×420000
• Runic Fang ×46

I dont own this character