Genshin Impact Rosaria Build

To maximize Rosaria's damage potential, be sure to cast her Elemental Skill before her Elemental Burst as the Crit Rate granted by her Ascension 1 Talent will be included with her Ascension 4 Talent Bonus as well.
Rosaria's Elemental Skill and Elemental Burst can be Reverse Melted (1.5x) with another Pyro applier for some quick and powerful damage, utilizing the Melt Reaction for increased damage output.

When using Rosaria with Chongyun to infuse her Normal Attacks with Cryo, her Normal Attack talent will have higher priority than her Skill.
This is important to consider when building Rosaria and planning team compositions, as it can affect the overall Elemental Reaction and damage output.
To maximize Rosaria's damage potential, consider the following:

• Use Rosaria's Normal Attack to trigger Cryo infusion and apply Superconduct or Melt Reactions for increased damage.
• Pair Rosaria with Chongyun and other characters that can provide Elemental Reactions and bonus effects to enhance her damage output.
• Focus on building Rosaria's Attack and Critical Rate to maximize her Normal Attack damage.

Rosaria's A4 passive provides a potent Crit Rate buff to her teammates via her own Crit Rate after casting her burst. This heavily incentivizes building enough ER to burst consistently and getting as close to 100% Crit Rate as possible.
To maximize the effectiveness of Rosaria's A4 passive, it is recommended to:

• Build Rosaria with high Crit Rate and ER to consistently cast her burst
• Aim for 100% Crit Rate to provide the maximum Crit Rate buff to teammates