Nether Queen Cookie Toppings Build — A Healer That Wants ATK

Our own toppings guide gives healers the default template: five Swift Chocolate, Cooldown substats first. It is the wrong template for Nether Queen Cookie.

Buried in the numeric detail of her passive is a conversion clause: Cooldown -0.5% per 1.0% ATK increased by Toppings, capped at -25.0%. Her Toppings-sourced ATK becomes Cooldown at a 2:1 rate until it hits a hard ceiling. Sitting next to it is a second clause that only fires with exactly one Healing Cookie on the team, which means bringing a backup healer turns part of her kit off.

This is the build sheet: what to slot, what the numbers say, and where the sourcing is thin.

Who Nether Queen Cookie actually is

Get the identity right before you spend a topping.

She arrived with the Tartrus of Oblivion update (v7.7), which Devsisters shipped on July 29, 2026, alongside the Epic Bomber Asphodel Cookie. Her Soulstones are listed as obtainable from the Rainbow Shell Gallery and the Guild Honor Shop (cookierun.wiki adds the Kingdom Arena Medal Shop), which is the same acquisition lane recent Legendaries like Timekeeper and Sugar Swan sit in. She is on the newer ★6 promotion track, so there is no Ascension and no Soulcores to collect.

She also has no Magic Candy. Magic Candy is Epic-only — all 40 global Magic Candies belong to Epic Cookies — so her ceiling is Toppings, tart, Beascuit, Treasures, skill level, and promotion. Promotion is where her Soul Essence goes instead: per cookierun.wiki, the ★6 track takes 540 Soulstones and 290 Legendary Soul Essence to reach ★6. Your Magic Candy priority list doesn't need reshuffling on her account.

The line in her passive that breaks the healer template

Here are the two lines that matter, as cookierun.wiki's skill table lists them under the Ruler of Tartrus passive she gains at the start of every battle:

If there is exactly 1 Healing Cookie in the team: DMG Dampening +25.0%, CRIT DMG Resist +35.0%

Cooldown -0.5% per 1.0% ATK increased by Toppings (capped at -25.0%)

Read the second line slowly. Not ATK in general — ATK increased by Toppings. Not a flat bonus — a rate, 0.5 points of Cooldown reduction per 1 point of Toppings ATK. And a cap at -25%, which means the conversion stops paying out once you've fed it +50% ATK from Toppings.

That reframes every slot on her. Searing Raspberry is not an off-meta greed pick on this Cookie; it is a Cooldown topping wearing a different hat. And because her healing also scales off ATK — 81.3% of ATK on the direct heal at base and max alike, and a periodic heal that runs from 34.0% of ATK per tick at base to 84.9% at max — the ATK you pour in keeps paying after the Cooldown conversion caps out. There is no wasted ATK on Nether Queen Cookie.

The honest caveat, because it matters. The sources split on whether that second line sits inside the one-healer condition. cookierun.wiki lists the conversion as its own line, separate from the conditional, and Devsisters' own July 29 patch-note summary of River of Tartrus describes the conditional as "If there is exactly 1 Healing Cookie on the team, grants DMG Dampening and CRIT DMG Resist to self", with no mention of the conversion. The Fandom wiki, though, still prints the conversion on the same line as the conditional, so whether it is gated behind the one-healer condition or runs unconditionally is not settled. Both readings point the build the same direction, so it doesn't change what you slot — it changes how confident you should be about team composition. If you want to settle it on your own account, test it in battle rather than on the stat screen, since Ruler of Tartrus is a buff she gains at the start of battle: time her skill with one healer, then with two.

The exactly-one-healer clause

The parts of that conditional all three sources agree on are DMG Dampening and CRIT DMG Resist — +25.0% and +35.0% on both wikis — granted to herself, if and only if she is the lone Healing Cookie in the lineup.

Those stack on the unconditional half of Ruler of Tartrus — Max HP +30.0% and DMG Dampening +28.5% — so a solo-healer Nether Queen sits on +53.5% DMG Dampening before Toppings, Treasures, or anything a support hands her.

The practical rule writes itself: do not bring a second healer. A second Healing Cookie switches off a chunk of her defensive profile. If you need more sustain than she provides, reach for a support Cookie with shields or damage reduction instead. Type matters, not the effect — the condition counts Healing Cookies, so a shield-heavy support that isn't classed as Healing leaves the clause intact.

One note for anyone benchmarking against older comps: our May 2026 healer ranking was written three patches before this Cookie existed, so treat its "best healer" lines as scoped to v7.4.

The topping build

Five Searing Raspberry. That's the build, and the reasoning is entirely mechanical rather than a preference.

For context, here are the two candidate sets with their published equip bonuses:

Swift Chocolate's five-piece bonus is -5% Cooldown. Searing Raspberry's five-piece bonus is +10% ATK, and on this Cookie that ATK is also worth -5% Cooldown through the conversion — while additionally increasing every heal, shield, and Chaos damage tick she produces, because all of them scale off ATK. The Raspberry set does the Chocolate set's job and keeps going. Chocolate only wins if you have already parked the conversion at its -25% ceiling and still want more, which requires +50% ATK from Toppings.

Two structural notes on the slots. You have five Topping slots, unlocked at Lv.15, Lv.20, Lv.25 and Lv.30, plus one Topping Tart slot — six matching pieces, which is what the "Equip 6" row is for. Upgrade ceilings are rarity-locked at +6 for XS, +9 for S, +12 for M, with a random bonus effect granted at +6, +9 and +12, so an M topping can carry three.

Substat priority, in order:

1. ATK — Cooldown, healing and shield size simultaneously. Epic Toppings roll it at 1%–3%.
2. Cooldown — the direct route, still good. Epic Toppings roll it at 1%–2%, tied for the narrowest band in the pool, which is exactly why the ATK conversion is such a good deal.
3. DMG Resist — keeps a Rear-line Cookie alive. Rolls at 1%–6% on Epic Toppings, the widest band available.

Note what isn't on that list: CRIT, ATK SPD, DEF. Her kit has no CRIT scaling and no auto-attack payload worth speeding up.

Oblivion Toppings and the tart slot

The v7.7 update shipped Oblivion Toppings, a Resonant set of 10 kinds that only Nether Queen Cookie and Asphodel Cookie can equip. Resonant Toppings roll their bonus effects in tighter, higher bands than regular ones, and the difference is not cosmetic. Per the value-chance tables in Devsisters' Topping Upgrades support article:

On the three stats this build chases, the floor moves, not the ceiling. (CRIT Resist is the outlier — its whole band jumps — but it isn't on her priority list.) A Resonant ATK roll cannot come in under 2%, where a regular one can hand you 1% and waste the slot — and on a Cookie whose whole build converts Toppings ATK into Cooldown, raising that floor pays twice.

Devsisters also stated explicitly in the patch notes that you do not have to equip Resonant Toppings exclusively to get a set effect — Oblivion Raspberries and regular Raspberries count toward the same Searing Raspberry set. Slot what you have and upgrade Resonant pieces in as they arrive.

Tart slot: Searing Raspberry. An M-rarity Searing Raspberry tart carries +7.2% to +12.0% ATK, versus -3.0% to -5.0% Cooldown on an M Swift Chocolate tart. Her skill text doesn't say whether tart ATK counts as "ATK increased by Toppings"; if it does, a +12% roll is another -6% Cooldown, and either way it raises her healing. Tarts grant only their primary stat and never need levelling or rerolling — the roll you craft is the roll you keep — and they come from limited-time events or the Mine Workshop, where v7.7 raised the Epic-tart craft odds from 0.3% to 1% on Common crafting and 3% to 10% on Rare.

There is now a tier above that. Legendary Topping Tarts landed in the same update, carrying one of 11 exclusive bonus effects and 12 upgrade attempts toward +12 — with the sting that a failed attempt burns an attempt and lowers the ceiling that tart can reach until you reset it. Epic tarts promote using Butter Cream, which comes out of Trials of the Nether Realm.

The Sweet Beascuit and why its ATK does not count

Beascuits are type-locked, so a Healing Cookie takes a Sweet Beascuit — there is no choice to make about which one, only which roll.

A Legendary Beascuit at max level (Lv.30) grants ATK +30% and HP +35% with 4 bonus effect slots. That ATK is excellent for her healing, and worth saying plainly: it does not feed the Cooldown conversion. The clause is scoped to ATK increased by Toppings, so Beascuit ATK, Treasure ATK and ally buffs all make her heals bigger without moving her Cooldown.

Which sets the bonus-effect priority. Legendary Beascuits roll in these bands:

Chase Cooldown here. The Beascuit is the one slot where Cooldown can't be bought through ATK, so this is where direct Cooldown earns its place — the exact inverse of the Toppings decision. DMG Resist second, ATK third.

The Element DMG line is where her Chaos typing shows up on the Beascuit — her Soul Shackling damage is Chaos-tagged — but she is a healer with a damage-over-time rider, not a damage dealer, so treat it as a bonus rather than a target. The Beast-Yeast guide covers where Beascuits drop.

River of Tartrus, number by number

Figures below come from cookierun.wiki's skill table, which lists a base (skill level 1) and a max column. Only one line differs between them — the periodic heal, 34.0% of ATK per tick at base and 84.9% at max — and every other figure is identical in both. (The Fandom wiki still shows her max column as TBA and prints 84.9% under base.)

The heal itself, on a 14-second cooldown:

• Direct healing: 81.3% of ATK + 3.0% of ATK per 1% of HP lost + 3.0% of the target's Max HP
• Periodic healing: 34.0% of ATK every 0.5 sec for 4.0 sec at base, 84.9% at max
• Overheal conversion: 17.0% of healing above Max HP becomes an HP Shield for 5 sec, capped at 50.0% of the target's Max HP
• HP Shield: 30.0% of the target's Max HP for 10.0 sec
• DMG Dampening +25.0% and DMG Resist +20.0%, both for 15.0 sec

That second bullet is the one that grows with skill level: eight ticks across four seconds, at 34.0% of ATK each at base and 84.9% at max. Any of it that overheals becomes shield instead of evaporating.

The debuffs she throws while healing:

• Soul Shackling: 198.7% of ATK as Chaos damage every 1.0 sec for 4.0 sec
• Tendrils of Chaos: Chaos DMG +7.0%, DEF -10.0% for 10.0 sec, one stack
• Injury: Max HP -20.0% for 20.0 sec, capped at -25%
• Branded Soul: DMG Dealt -20.0%, ATK -17.5% for 15.0 sec
• If an enemy Cookie gains Invulnerability, it is removed after 1 second

The Ring of Tartrus:

• She banks Soul Fragments: +1 every 5.0 sec, +5 when an enemy Cookie is defeated, stacking to 10, and spends 5 per trigger
• Just before an ally would be defeated, she hands them Immortality, Debuff Immunity, and 3.0% of their Max HP every 1.0 sec for 4.0 sec — up to 2 times per battle
• Allies who already have Immortality or Invulnerability active are excluded
• Power of Tartrus rides along: ATK +22.0%, DMG Dampening +12.5%, DMG dealt to Cookies +20.0% for 15.0 sec

She has her own version too. Once per battle, before being defeated, she grants herself the Queenly Ring of Tartrus and resets her Cooldown — Immortality, Debuff Immunity, and 10.0% of Max HP every 0.5 sec for 4.0 sec, more than three times the ally version's healing rate. She also opens every fight by applying DMG -18.0% and ATK -15.0% to enemies for 25.0 sec and shielding herself for 125.0% of her own Max HP for 10.0 sec.

Then a block of immunities that quietly answers a lot of PvP: she is not affected by removable Incapacitated debuffs, Silence, Cooldown freezing, or Cooldown recovery reduction. Cooldown-freeze comps do not shut her off, which matters for Kingdom Arena defence.

Where she earns her slot

Three concrete places, all from the v7.7 notes rather than vibes.

Timeline of Fate Episode 7. The episode applies Consuming Memories from the Dusty Bookshelf stage onward: attacking or taking damage fills a bar, and a full bar puts that ally to Sleep, increases the damage they take, and applies Dismay, which permanently blocks Healing and Shields. Nether Queen Cookie is immune to Consuming Memories and can shield and heal allies who already have Dismay. She is not "good here" — she is the designed answer to the stage effect. The Bell of the Nether Realm tactical skill, available from the Failed Binding Spell stage, clears the bar and Dismay from all allies and grants allies increased damage if she is on the team. Episode 7 is playable without clearing earlier episodes.

Trials of the Nether Realm. The new seasonal endless-exploration mode carries a restriction that changes roster maths: only one high-rarity Cookie — Witch, Beast, Legendary, Ancient, Dragon, or Super Epic — can be placed per run. She is Legendary, so bringing her spends that single slot. Each season's Expedition Cookie list is also built from three featured elements, and Chaos has featured in one of the six seasons so far (Season 4, September 8–22, 2026), per cookierun.wiki, which also says Expedition Cookies can be picked whether or not you own them. It's also where Butter Cream and Tart Cores come from, so it's where your Legendary tart project lives.

General PvE and Arena defence. The immunity block plus a once-per-battle Immortality window with a Cooldown reset makes her hard to remove, and her opening ATK and DMG reduction lands before anyone has acted. One roster rule: her ally Immortality window explicitly does not stack with existing Immortality or Invulnerability effects, so pair her with Cookies that lack their own survival button.

Common Nether Queen build mistakes

1. Slotting five Swift Chocolate out of habit. It is the standard healer default and the wrong call here. The Raspberry set delivers Cooldown and healing and shield size through one stat.
2. Bringing a second healer "for safety." That is a confirmed -25% DMG Dampening and -35% CRIT DMG Resist on her, and possibly the Cooldown conversion too. Use a non-Healing support instead.
3. Assuming Beascuit ATK feeds the conversion. The clause says ATK increased by Toppings. Beascuit ATK, Treasure ATK and ally buffs all boost her healing and none of them move her Cooldown.
4. Hoarding Oblivion Toppings before building her. Resonant and regular pieces of the same flavour count toward the same set bonus, per the patch notes. Build now, upgrade in later.
5. Quoting the periodic heal without its skill level. It is the one line that scales — 34.0% of ATK per tick at base, 84.9% at max on cookierun.wiki — and the Fandom wiki still prints the max figure under base.
6. Pairing her with allies who already have Immortality or Invulnerability. Those allies are explicitly excluded from the Ring of Tartrus.
7. Waiting on a Magic Candy. She doesn't have one. Nothing about her build is on hold.

Quick Action Checklist

• Run five Searing Raspberry, not Swift Chocolate — her passive converts Toppings ATK into Cooldown at 0.5% per 1%, capped at -25%
• Substats: ATK first, Cooldown second, DMG Resist third. Skip CRIT, ATK SPD and DEF entirely
• Field her as the only Healing Cookie on the team; use a non-Healing support if you need more sustain
• Verify the conditional yourself in battle, not on the stat screen: time her skill with one healer, then with two
• Slot Oblivion Toppings as you get them, but don't wait for a full set — Resonant and regular pieces share the set bonus
• Tart slot: Searing Raspberry, ideally M rarity (+7.2% to +12.0% ATK)
• Beascuit: Sweet Beascuit, chasing Cooldown rolls — Beascuit ATK does not feed the conversion
• Don't budget for a Magic Candy; she doesn't have one. Her Legendary Soul Essence goes to ★6 promotions (290 in all)
• Don't pair her with allies who already carry Immortality or Invulnerability — they're excluded from the Ring of Tartrus
• Bring her to Timeline of Fate Episode 7: she's immune to Consuming Memories and can heal through Dismay