Role: Support / RES Shredder & Healer
Best For: Players who want a highly flexible support that can reduce enemy Elemental RES, provide a large teamwide DMG Bonus, and heal the active character with very little field time.
1. Recommended Artifacts
4-Piece Scroll of the Hero of Cinder City — Recommended for support Xilonen because she can easily activate its full effect, providing a powerful Elemental DMG Bonus to her teammates while also reducing her own Energy requirements.
Alternative: 4-Piece Archaic Petra can provide additional Elemental DMG Bonus when Xilonen picks up the appropriate Crystallize shard, although its activation is less convenient. Noblesse Oblige can also be used when another character already carries Scroll.
2. Recommended Weapons
Premium: Peak Patrol Song
Alternatives: Freedom-Sworn, Favonius Sword
F2P: Flute of Ezpitzal
Peak Patrol Song is Xilonen’s signature support weapon, providing DEF while granting additional Elemental DMG Bonus to the team. Favonius Sword is one of her strongest practical alternatives because it helps both Xilonen and her teammates with Energy.
Flute of Ezpitzal is a craftable F2P option that provides DEF%, improving Xilonen’s healing when additional Energy Recharge is unnecessary.
3. Recommended Teams
Neuvillette: Neuvillette + Furina + Kazuha + Xilonen
Mavuika: Mavuika + Xilonen + Citlali + Bennett
Navia: Navia + Xilonen + Furina + Bennett
Xilonen fits into a wide range of Pyro, Hydro, Electro, Cryo, and Geo teams because her Skill can reduce the corresponding enemy RES while Scroll of the Hero of Cinder City provides an additional DMG Bonus.
She is especially valuable when a team wants both offensive support and healing from the same slot. However, her RES reduction depends on the elemental composition of the party, so she does not provide the same general support to Anemo and Dendro damage dealers.
4. Main Stats / Substats
Sands: Energy Recharge / DEF%
Goblet: DEF%
Circlet: Healing Bonus / DEF% / CRIT Rate with Favonius
Priority: Energy Recharge until needed → CRIT Rate with Favonius → DEF%
Xilonen is relatively easy to build because her support value does not require strong offensive artifact stats. Prioritize enough Energy Recharge if you need her Burst every rotation, then DEF to improve her healing.
When using Peak Patrol Song, reaching approximately 3,200 DEF allows Xilonen to maximize the weapon’s team buff. Favonius Sword users should instead build enough CRIT Rate to trigger its passive reliably.
5. Playstyle
Use Xilonen’s Elemental Skill to enter her Nightsoul’s Blessing state, then perform two Normal Attacks to activate her Source Samples and apply her RES reduction. Once this is done, switch to your main damage dealer.
Use her Elemental Burst when healing is required. Because Xilonen can activate her main buffs very quickly, she normally requires only a few seconds of field time each rotation.
Prioritize Skill → Burst when leveling talents. Her Skill determines the strength of her RES reduction, making it the most important talent for her standard support build.
6. F2P
Xilonen is highly F2P-friendly because most of her core support value comes directly from her Skill and artifact set rather than a premium weapon.
Flute of Ezpitzal is craftable and provides DEF for stronger healing, while Favonius Sword is an excellent option if available. F2P players should prioritize leveling Xilonen’s Skill and obtaining a complete Scroll of the Hero of Cinder City set before investing heavily into artifact substats.
*StoryBillion Tip: Xilonen does not need to build personal damage to become an excellent support. Her most important job is activating her Skill’s RES reduction and the Scroll artifact buff, then leaving the field. Once her Energy and healing are comfortable, additional artifact optimization provides relatively little benefit compared with investing those resources into your main damage dealer.
