Use your favourite features in-game with our Desktop AppMuch more than a healer, Ardelia is one of the best Support Operators in the game. She increases the damage of your team, whether Arts or Physical Damage.
Being a Nature Operator also means she has access to Corrosion, which further increases the damage of any operator on your team. As expected from Eyjaf- I mean, Ardelia.
Weapon: Dreams of the Starry Beach
Gear Set: Eternal Xiranite
These two teams will be popular ones due to Endmin/Chen being free and Laevatain being one of the first Limited Operators. However, Ardelia can fit into just about any team, these are simply some recommendations.
Laevatain - Wulfgard - Akekuri - Ardelia
Ardelia has good synergy with Laevatain, since it triggers Corrosion when using her Combo Skill, which triggers Laevatain’s Combo Skill for faster resource generation. Being a full Arts Damage team means that Ardelia can make full use of her Signature Engine.
Endministrator - Chen - Ember - Ardelia
Ardelia applies both Physical and Arts Susceptibility with her Battle Skill, so even Physical teams can make use out of her. Just keep in mind that Ardelia requires a Final Hit against an enemy with no Vulnerable or Arts Infliction stacks in order to use her Combo Skill, which is really important since it’s the only way to trigger Corrosion.
Dreams of the Starry Beach is Ardelia’s Signature Weapon and as expected has great synergy with her. It increases her Will and Healing Effects and consuming Corrosion from enemies further increases the Arts DMG taken by enemies. If you can’t get this Weapon, Detonation Unit is another excellent Utility option for Ardelia.
Freedom to Proselytize requires healing with the Battle Skill, and Ardelia healing comes from her Combat Talent, making her unable to fully utilize this weapon. It still provides good stats that increase Ardelia’s Healing.
The Eternal Xiranite set allows Ardelia to increase the ATK of her Teammates after consuming Corrosion from enemies.
LYNX is a Gear Set that focuses purely on healing and reducing the damage taken by other teammates. Lower damage potential, much higher survivability.
Battle Skill > Combo Skill >= Ultimate > Basic Attack
Most of the utility comes from the Battle Skill, so leveling it up is your top priority. Combo Skill and Ultimate come next for some increased damage, but since that’s not Ardelia's main focus, you should prioritize leveling up your DPS Operator's Skills first.
Most of Ardelia’s Potentials only increases her Healing Potential. P1 offers great value, but after this you’ll need to go all the way to P5.
Potential 1 increases the Susceptibility Effect when consuming Corrosion from enemies, increasing the damage of everyone in your team.
Potential 2 allows her Combat Talent to heal both the controlled operator and another operator with the lowest HP%.
Potential 3 improves her Ultimate and increases the chances to trigger healing drops on the field.
Potential 4 reduces the energy cost of her Ultimate, for even more… Healing?
Potential 5 is great! It reduces the cooldown of her Combo Skill (meaning more Corrosions), increases the damage of the Combo Skill and the duration of the Corrosion it applies.
Keep in mind that vertically investing in Arknights Endfield is not recommended and you should treat these as a small bonus if you happen upon it.
Ardelia provides massive utility for your team thanks to her amazing Battle Skill that synergizes with any team composition and provides healing for your team. Hitting enemies with it creates some healing spots on the field, which you can walk to it to heal the controlled operator or, in case you’re already at full health, another operator with the lowest HP% in your team. The healing is based on Ardelia’s Will, so stack Will if you need the extra healing, otherwise Intellect can help with some extra Damage.
If the Battle Skill hits an enemy under the Corrosion Arts Reaction, Ardelia can consume the Corrosion to apply Physical and Arts Susceptibility to the enemy, increasing the damage of all your team members. Usually this requires another Element on your team to trigger Corrosion, but none of Ardelia moves applies Nature Infliction to enemies. The good news is that Ardelia doesn't need any of this.
Using her Combo Skill, which requires hitting a Final Strike against an enemy with no stacks of Vulnerable or Arts Infliction, applies Corrosion to enemies, which her Battle Skill consumes to apply both Physical and Arts Susceptibility to them.
The Ultimate also provides extra healing spots, but that’s all. All the utility and gameplay loop revolves around using her Combo Skill to apply Corrosion and following-up with her Battle Skill.
Ardelia will release on January 22nd, 2026 along with the release of Arknights: Endfield.
She is a Standard Operator, meaning she is permanently available through the gacha system.
