Honkai: Star Rail - Sparkle Character Builds (Light Cones, Relics, Team Comps)

screenrant.com:

Make sure to find the best builds and team comps for Sparkle in to guarantee she will operate at her full capacity as a support unit. Sparkle is a 5-star Quantum character who follows the Path of the Harmony. She was introduced with the release of 2.0, which kicked off the second year of content for the turn-based RPG by HoYoverse. Sparkle made her debut in Phase 2 banners of the update and is now considered a limited-time character, meaning players can only obtain her whenever she comes into rotation in the banner system.

Sparkle specializes in boosting her team’s total Skill Points and increasing their overall damage output whenever they consume these points. In addition to that, she is a reliable support for the main DPS, as she can increase their CRIT DMG and advance their action. Sparkle is a little bit complicated to build at first as she deviates from the pattern of other Harmony units with some unusual stat scaling, but building her properly and inserting her in the proper team comps in is worth it, as you will likely see your newfound party powering through tough encounters.

The best Light Cone for Sparkle is Earthly Escapade, her signature 5-star gear that can only be obtained from limited banners whenever Sparkle is in the gacha system. Earthly Escapade increases Sparkle’s CRIT DMG by 32% and, at the start of the battle, she gains Mask for three turns. Mask increases her allies' CRIT Rate by 10% and their CRIT DMG by 28%. Additionally, for every Skill Point recovered by Sparkle (likely via her Talent in ), she gains Radiant Flame. When four stacks of Radiant Flame are obtained and consumed, they grant Mask for four turns.

The CRIT DMG buff provided through Sparkle's Skill scales off of her own CRIT DMG, making it a vital stat to have. This is part of what makes Earthly Escapade the perfect fit for her.

If her signature weapon is not available, you can use the 5-star But the Battle Isn’t Over Light Cone. This will increase Sparkle’s Energy Regeneration