Ardelia

early game support

supporthealerdebuffer

Ardelia sits in the top overall tier because she compresses two jobs into one slot: a Nature-attribute debuffer who shreds enemy defenses and a healer who keeps the whole squad topped up through her Talent. Her Corrosion into Susceptibility rotation directly raises the team's damage ceiling, and the same kit spreads healing without spending extra actions, so she fits almost any composition.

This is the budget entry point for players who have just pulled Ardelia and want her to function immediately. Because her healing is calculated from Will, the whole setup is built around stacking Will: Mordvolt Resistant supplies a big Will bonus along with Intellect, and its battery pieces add Treatment Bonus, while the set's low-HP rider increases Treatment Effect when fights get dangerous. Freedom to Proselytize continues that theme and also lets her heal an additional ally with its effect, which matters in the early game when one extra heal can carry a fight. Fluorescent Roc is listed as a cheaper alternative that still provides Will and a small Attack bump. Nothing here is fancy, but the Will stacking keeps her relevant until better weapons and LYNX or Eternal Xiranite become available.

Insights

Core Mechanics

Eruption Column (Combo Skill) only fires when the controlled operator lands a Final Strike on an enemy carrying no Vulnerability or Arts Infliction, then forces temporary Corrosion onto nearby foes.
Dolly Rush (Battle Skill) eats that Corrosion to stamp Physical and Arts Susceptibility on the target, which is what actually opens up the team's damage window.
Talent Mountainpeak Surfer recasts Dolly Rush once per activation at no cost whenever a Corroded enemy is within range.
Talent Friendly Presence drops Shadows of Mr. Dolly from Dolly Rush and, at a low chance, from Ultimate copies; touching one heals the controlled operator or the lowest-HP ally if they are already full.
Wooly Party (Ultimate) is a mobile channeling state that scatters damage-dealing Mr. Dolly copies in random directions.

Scaling

Her healing output is driven by Will, so anything that raises Will or Treatment Efficiency directly increases how much she restores per Shadow pickup.
Susceptibility strength climbs with Battle Skill investment, making that skill the one to upgrade first if you want the team's damage to grow.
She performs fine on a budget because the core loop is refundable through Mountainpeak Surfer, but she really takes off once her Talent levels and endgame gear are online.

Team Role

Ardelia is a Nature-attribute Supporter who plays as a hybrid debuffer and sustain unit rather than a pure damage dealer. Her offensive contribution comes from the Corrosion-to-Susceptibility chain: a teammate's Final Strike lets Eruption Column land Corrosion, then Dolly Rush converts it into Physical and Arts Susceptibility, amplifying everything her allies do afterwards. With Eternal Xiranite equipped she converts that same debuff into a party-wide damage aura, so she scales best next to a main damage dealer who can reliably finish enemies and eat the enlarged damage window. Defensively she blankets the field with healing via Shadows of Mr. Dolly, and picking those up with the controlled operator is the primary way the team stays alive. That makes her positioning flexible: she wants to be near the action so the Shadows spawn close to whoever needs them, but she never has to be the one carrying the damage. Because her trigger depends on the controlled operator landing a Final Strike, she works in almost any composition that has a competent on-field attacker, and the Awakening Sign-In handout means many players already own her.

Weapon

freedom_to_proselytizeBest

5★ Wand

fluorescent_rocRank 2

4★ Wand

Gear

healing_boost

Pieces

armor

gloves

core 1

core 2

Explanation

The source text pairs the beginner setup with Freedom to Proselytize, since pumping Will is the cheapest way to make her heals meaningful before better gear is available.

Mordvolt Resistant is the accessible set that provides the Will and Intellect she wants, and the battery core slots contribute Treatment Bonus on top.

Fluorescent Roc appears in the general weapon ranking as an early-game option because it mirrors the Will-focused approach with a bit of extra Attack.

Once better gear and weapon options open up, move to a Dreams of the Starry Beach or LYNX configuration for stronger sustain.

Notes

Mordvolt Resistant is chosen because Ardelia's healing formula reads off Will, and the set hands out a large chunk of Will plus Intellect.
The set also raises Treatment Effect while she is under half HP, which is a useful safety valve during rough early fights.
Freedom to Proselytize adds yet more Will and lets her extend a heal to a second ally through its weapon effect.
Fluorescent Roc is a serviceable stand-in early on since it also supplies Will along with some Attack.