Tooth Fairy
Who is Tooth Fairy?
Tooth Fairy is a 6-star Star-afflatus Healer and Crit Support, elevated from A tier all the way to S+ by her Euphoria upgrade. Her kit revolves around critical strikes — she inflicts powerful Crit-related debuffs ([Bad Tooth], [Neuralgia]), heals and cleanses the team, and dramatically amplifies Impromptu-archetype damage. Prydwen highlights her -50% Crit RES/DEF shred via [Neuralgia] as the reason she became a core support for Impromptu teams. Her main trade-off is low base tankiness, making her a liability when she is at an afflatus disadvantage.
Kit Summary
Decreases target Critical Resist and DEF by -10% per stack (up to 5 stacks). Applied via Empty Gums and passives, increasing effective team Crit Rate by +40% and Crit DMG by 15% at full stacks.
Applies [Bad Tooth] stacks; also provides her +30% Crit Rate for this attack, enabling the cleanse passive.
After Tooth Fairy's attack scores a critical hit, purifies [Stats Down], [Negative Status], and [Control] statuses from all allies — her primary team-protection tool.
Adds 8 [Inspiration] to this round's [Impromptu Incantation] and inflicts [Neuralgia] for 1 round. [Neuralgia] causes the carrier to take Genesis DMG equal to 30% of total [Impromptu Incantation] DMG taken — her core Impromptu amplifier.
Consistent healing output via Lullaby and Insight 3 passives. Generally very AP-positive.
Build Guide
🔮 Best Relic / Echo Set
Resonance: ATK-primary build to maximize healing output; requires at least 43% Critical Rate to ensure her Ultimate cleanse effect lands consistently. Post-Euphoria: ATK and HP focus (Equanimity pattern). Portray: P1 for the early spike.
⚔ Best Light Cone / Weapon
Beyond Wonderland (signature BiS): 16% HP substat improves tankiness; 12% Healing Bonus + 7–21% Critical Rate improves healing and ensures her cleanse proc. Passive stacks Healing Bonus each time she uses a debuff incantation (up to 4 stacks). That Inquisitive Dear: Universal healer psychube; Tooth Fairy's debuff procs its extra healing passive. Does not require Gluttony to max amplify (copies available in Fragment Shop). Melodies Old and New: Increases all allies' DMG Dealt by 3–9% plus 8% HP and 12–16% Healing Bonus — adds team-wide damage on top of sustain. Laughter and Laughter (budget/free): A solid free-to-obtain option; better in long fights where it can stack up to 12–24% Healing Bonus.
📊 Substats Priority
👥 Best Teams
Impromptu core: Tooth Fairy + Aleph + Kiperina + Mercuria/An-an Lee — Tooth Fairy's [Neuralgia] amplifies Impromptu Incantation burst, Aleph provides [Interpretation], Kiperina covers sustain now that Tooth Fairy shifts to pure support, Mercuria or An-an Lee fills the flex slot (prydwen).
Crit/Burns: Tooth Fairy + Windsong + Lopera + sustain — her Crit shred debuffs pair with Lopera's Crit amplification and Windsong's single-target burst (prydwen cross-reference).
Wide applicability: Her -Crit RES debuffs and team cleanse mean she fits in any Crit-oriented team as healer/support.
F2P Verdict
Tooth Fairy is a limited 6-star. Beyond Wonderland (her signature) is recommended, but That Inquisitive Dear and Laughter and Laughter are accessible alternatives, with Laughter and Laughter being obtainable free. Her tankiness is a real concern — she is almost as squishy as Charlie — so invest in HP/DEF substats and keep her away from afflatus disadvantage matchups.
Frequently Asked Questions
Why was Tooth Fairy elevated to S+ tier?
Her Euphoria upgrade introduced [Neuralgia], which causes Impromptu Incantation carriers to take Genesis DMG equal to 30% of total [Impromptu Incantation] DMG received, creating a -50% effective Crit RES/DEF shred that dramatically raises the damage ceiling of Impromptu teams. This single addition transformed her from a decent healer into an Impromptu core.
What is the best psychube for Tooth Fairy?
Beyond Wonderland is her signature BiS: it gives 16% HP for tankiness, 12% Healing Bonus + 7–21% Critical Rate to ensure her cleanse proc, and stacks more Healing Bonus on debuff incantation use. That Inquisitive Dear and Melodies Old and New are strong alternatives. Laughter and Laughter is a solid free budget pick.
How does her cleanse work?
When Tooth Fairy's attack (via Empty Gums or her standard attack) scores a critical hit, all allies are purified of [Stats Down], [Negative Status], and [Control] statuses. Since her kit grants her +30% Crit Rate on Empty Gums, maintaining at least 43% total Crit Rate makes this consistent.
Should I pull Tooth Fairy?
Must-pull if you run Impromptu or Crit-based teams. Her -Crit RES/DEF stacking debuffs, team-wide cleanse, and consistent healing are a package no other healer replicates. Her main weakness is very low base HP/DEF — she needs investment to survive high-pressure fights.