pretty solid shielding 4* that can outperform even 5* character in niche situations.

scalings are really solid to build as dps however base stats are fairly low due to her rarity as a 4*.

our very first em/crit scaling unit outside of dendro. of course swirl does not scale with crit however her passive 2 enables additional strong em scaling alongside the already strong atk scaling on her skill and burst.

c0 is highly recommended for support.
c6 can be built as either dps or support.

support build: (f2p friendly)
weapon:
atk% weapon for stronger shield
favonius: provides team with energy and increase burst uptime (highly recommend)
sacrificial: if C6 is unavailable use this to make up for the lack of uptime.

artifact set: viridescent for element res. shred as her skill and burst are easy to apply single target and aoe.
mainstats: atk%>er, atk%, atk%
substats: atk%>er>atk

dps crit build: (only recommended if C6)
weapon:
widsith: really good f2p option whereas EVERY stat is beneficial.
5* crit weapons: most of them generally outperform this.

artifact set:
gilded dreams: major stat boost for crit build.
mainstats: atk%, anemo, crit
substats: crit dmg=crit rate>atk%=em>atk

dps build em: (f2p friendly)
weapon:
sacrificial: really solid f2p option as the substat is the focus and the skill refresh passive is always nice.
5* em weapons: these options will definitely strongly outperform sacrificial in terms of dmg and utility.

artifacts:
viridescent: this set is a no brainer as swirl’s dmg gets increased by 60% and it scales off em, as well as res. shredding benefitting elemental absorption dmg as well as the team’s overall dmg.
mainstats: er>em, em, em (use er sands piece unless energy requirements are met)
substats: em>er>atk%=crit dmg=crit rate

energy requirements: (mostly recommended for support/em dps build)
if solo anemo: 180-220
if multiple anemo: 160-180

in conclusion she’s a really solid and flexible unit. it’s so great having a unit that harmonizes em and crit together. not to give false expectations but she will obviously get outperformed by 5* units but when competing with 4* she’s definitely up there.

for beginners she’s a really good choice as she’s really flexible and will function very nicely in general world exploration even as a dps. however don’t expect this unit to carry you in floor 12 abyss as a dps, because realistically speaking it’s doubtful due to lack of stats as she is a 4*.