Navia

• Excellent damage from her Elemental Skill, and this can be used twice per rotation with decent AoE, which is best used against bosses.
• Comfortable playstyle, as her teams will almost always have a Crystallize shield up.
• Her teams have easy access to free-to-play characters with minimal investment to supply her with Crystallize shards.
• Access to elements other than Geo provides her with more flexibility in team building, and therefore not hindered by mono-Geo limitations.

Her best Weapon is her sig Verdict

Some other good weapons for her are

• Serpent Spine
• The Unforged
• Wolfs Gravestone
• Ultimate Overlord's Mega Magic Sword
• Redhorn Stonethresher

Her best artifact set is Nighttime Whispers

Artifact Main Stats

• Sands: ATK%
• Goblet: Geo DMG Bonus%
• Circlet: CRIT Rate or CRIT DMG

Artifact Sub-Stats

CRIT DMG, CRIT Rate, Energy Recharge, ATK%

Some good teams for her are

Hyper

• Navia
• Yelan
• Xiangling
• Bennett

Sub-Dps

• Navia
• Yelan
• Hu Tao
• Zhongli

Navia Talent Priority

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

Navia Ascension Materials

• Prithiva Topaz Sliver ×1
• Prithiva Topaz Fragment ×9
• Prithiva Topaz Chunk ×9
• Prithiva Topaz Gemstone ×6
• Mora ×420000
• Artificed Spare Clockwork Component - Coppelius ×46
• Xenochromatic Crystal ×36
• Transoceanic Chunk ×30
• Transoceanic Pearl ×18
• Spring of the First Dewdrop ×168

Navia Talent Materials

• Mora ×4957500
• Crown of Insight ×3
• Philosophies of Equity ×114
• Guide to Equity ×63
• Teachings of Equity ×9
• Xenochromatic Crystal ×93
• Transoceanic Chunk ×66
• Transoceanic Pearl ×18
• Lightless Silk String ×18

I dont own this character