Yale and Oliver

Krackle × Kaboom

Yale and Oliver

/Pyro

Shotgun / Sword

Ctier

Introduction

Yale and Oliver is a Pyro character in Duet Night Abyss. Yale and Oliver's weapon type is Shotgun / Sword and role is DPS. Faction: Unaffiliated.

On our Duet Night Abyss tier list Yale and Oliver is C tier, 20th of the 26 characters ranked, from where 18 current tier lists put Yale and Oliver.

Other Pyro characters in Duet Night Abyss: Camilla, Hellfire, Lynn and Margie.

Is Yale and Oliver good?

Yale and Oliver float above the fray, out of melee range, and drop Tot Poppers that deal more damage the further they are from their target. That ranged, floating playstyle handles both mobs and bosses well, but the attacks come out slow enough that fast-moving enemies can be a real problem.

The whole approach is a bit unusual to get the hang of, and Intron 6 is what smooths out its conditional requirements.

Strengths

  • Tot Poppers deal explosive damage
  • Avoids melee range entirely by floating
  • Deals more damage the farther they are from the target

Weaknesses

  • Struggles against mobile enemies due to slow attacks
  • Unusual playstyle that takes getting used to

Best build for Yale and Oliver

From 2 guides

Melee weapon

3 options

Skill priority

  1. 1
    Tot PopperDMG
  2. 2
    Nightmare's GraspUltimateThe Rules of BombPassive

Ranged weapon

2 options
  1. 12 of 2
  2. 2
    Dregs of Glimmer
    1 of 2

Demon Wedges

  • Blastwave1 of 1
  • Blaze • Inspo1 of 1
  • Devouring Wildfire1 of 1
  • Inferno • Wildfire1 of 1
  • Prime • Morale1 of 1

Profile

Yale and Oliver carries the title "Krackle × Kaboom". Yale and Oliver's birthday is December 20th/21st. Yale and Oliver is voiced by Mi Yang (弭洋) in Chinese, Claire Morgan in English, Tamura Mutsumi (田村睦心) in Japanese, and Lee Eun-jo (이은조) in Korean. Yale and Oliver was released on 28 October 2025.

Background

Yale: "Peter Piker p-picked a peck of p-p-peckled peppers..."

Oliver: "It's 'Peter Piper picked a peck of pickled peppers!' Come on, Yale, keep up!"

In the quiet outskirts of Scarletriver stood a shabby toy shop called Snap 'n' Spark, a place that opened only when its young shopkeeper felt like it.

Yale, small in stature and wrapped in an air of mystery, spent his days crafting strange toys.

Yet the oddest thing was the orange ball hanging from his belt, a device that spoke in a sharp, scolding voice.

It was called Tot Popper, a bomb containing a soul of someone named Oliver.

Yale's past was a blank space he rarely touched.

His earliest memories were of a white room, a white table, and a man in a lab coat ordering him to assemble mechanical parts he barely understood.

Years later, on a winter morning, the people of Scarletriver found him unconscious behind a bakery, burned and trembling like a crature pulled from the coals.

His tattered shirt bore a mark of the Spathathoi Alchademy.

A literate townsman recognized the name and quietly burned the shirt, erasing whatever past Yale had escaped from.

Stats

  • ATK395.39
  • HP1,205.01
  • Shield1,205.01
  • DEF288
  • Max Sanity180
  • Skill DMG120%
  • Skill Range100%
  • Morale0%
  • Malaise0%

At max level. Each bar is measured against the highest value in the Duet Night Abyss roster.

Skills

5
  • Tot Popper

    DMG

    Drops a bomb named [Tot Popper], assuming the form of either [Tot Popper: Yale's Make] or [Tot Popper: Oliver's Make]. Upon landing, the bomb explodes after 2s, dealing Pyro Damage to enemies within a cross-shaped area and detonating any other [Tot Poppers] within range. A maximum of 10 [Tot Poppers] can exist at the same time. Tot Popper: Yale's Make: When dealing damage, causes greater Stance reduction to the target(s). The greater the difference between Yale and Oliver's Skill Range and the Skill Damage provided by equipped Demon Wedges, the higher the chance of deploying [Tot Popper: Yale's Make]. If the difference is no less than 50%, it's guaranteed to be a [Tot Popper: Yale's Make]. Tot Popper: Oliver's Make: Deals higher damage. The greater the difference between Yale and Oliver's Skill Damage and the Skill Range provided by equipped Demon Wedges, the higher the chance of deploying [Tot Popper: Oliver's Make]. If the difference is no less than 50%, it's guaranteed to be a [Tot Popper: Oliver's Make].

  • Nightmare's Grasp

    Ultimate

    Generates [Nightmare Lab] around Yale and Oliver. Using the skill again can close [Nightmare Lab] in advance. Nightmare Lab: When in the area of [Nightmare Lab]: The Movement Speed of enemies within range is decreased. The detonation timers of [Tot Poppers] on the ground are paused, and they won't be detonated by other [Tot Poppers]. When [Nightmare Lab] closes: Detonates all [Tot Poppers] within range and the lab explodes to deal Pyro Damage to the enemies within range. For each [Tot Popper] detonated, increases the explosion damage of [Nightmare Lab] and restores Sanity for Yale and Oliver.

  • The Rules of Bomb

    Passive

    When a Tot Popper is deployed, if it's no less than 2 metres above the ground, it deals Pyro Damage to nearby enemies upon landing.

  • Bombing Memories

    Passive

    Each time a Tot Popper is deployed, Yale and Oliver gains 1 stack of Bombing Frenzy, up to 3 stacks. [Bombing Frenzy]: Increases Skill Efficiency.

  • Aetherflame

    Passive

    Increases ATK for self and Pyro allies.

How to get Yale and Oliver

Buy Yale and Oliver's Thoughts for 150 Phoxene Plumule in the Shop, or exchange 10 Secret Letter Clues for a Secret Letter opened after a Covert Commission stage; 30 Thoughts unlock them or upgrade Intron level.

Art

Yale and Oliver key art

More Pyro characters

All characters