This article is a comprehensive guide to Yale and Oliver in Duet Night Abyss (DNA), covering their rating, recommended builds (weapons and demon wedges), skills, introns, and more.
All Character ListsTable od Contents
Yale and Oliver Character Overview

Yale and Oliver Information
| Element | Pyro |
|---|---|
| Role | DPS,Skill DMG |
| Weapon (Melee) | Sword |
| Weapon (Ranged) | Shotgun |
Yale and Oliver Tier / Rating
| Playable | Combat Partner |
|---|---|
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Pyro DPS Duo
Yale and Oliver specialize in high Skill Damage using their Tot Popper bombs. Yale focuses on reducing enemy Stance while Oliver maximizes burst damage.
High-Impact Bombers
Their abilities allow them to control the battlefield by placing bombs strategically and detonating them for massive Pyro damage, making them excellent at dealing both single-target and AoE damage.
Best Character Tier ListYale and Oliver Stats
*Skill increases are not included.
| Lv. 1 | Lv. MAX(80) | |
|---|---|---|
| ATK | 33.6 | 395.39 |
| HP | 96 | 1,205 |
| Shield | 96 | 1,205 |
| DEF | 288 | 288 |
| Max Sanity | 180 | 180 |
| Skill DMG | 100% | 120% |
| Skill Range | 100% | 100% |
| Skill Duration | 118% | 118% |
| Skill Efficiency | 100% | 100% |
| Morale | 0% | 0% |
| Resolve | 0% | 0% |
How to Unlock or Get Yale and Oliver?
Unlock Through Nocturnal Echoes: Crystalophile

Currently, the only way to get Yale's Secret Letter is by clearing Nocturnal Echoes: Crystalophile at Lv. 50. The Secret Letter is a guaranteed drop, but the amount you get will be random.
Only 5 Completion Rewards Per Week
Nocturnal Echoes have a limit to how many times you can get rewards from them. Each week, you can only get 5 chances of getting their rewards. This limit is shared out across all the Nocturnal Echoes.
Yale and Oliver Best Weapon
Yale and Oliver's Best Melee Weapon
| Best Melee Weapon |
|---|
Blade Amberglow |
To prevent overstacking on Skill DMG, Blade Amberglow's ATK boost can help increase Yale and Oliver's damage. Wanewraith can be used for Skill DMG boost if you feel that you have enough ATK from Demon Wedges.
Yale and Oliver's Best Ranged Weapon
| Best Range Weapon |
|---|
Excresduo |
Excresduo is preferred for Yale and Oliver since it can boost the damage of their Tot Poppers. While Screamshot increases Skill Duration and is a weapon they're proficient on, Skill Duration doesn't benefit them due to how Nightmare Lab works.
Yale and Oliver's Best Partner Weapon
| Best Range Weapon |
|---|
Wanewraith |
Since Combat Partners can equip one weapon, Skill DMG boosting weapons like Wanewraith or Excresduo are good for Yale and Oliver. Wanewraith is preferred since ammo can be a limiting resource depending on the game mode.
Yale and Oliver Best Demon Wedge
We are currently reviewing the game. The article will be updated as soon as the information is confirmed!
Yale and Oliver's Upgrade Materials
We are currently reviewing the game. The article will be updated as soon as the information is confirmed!
Yale and Oliver's Skill
We are currently reviewing the game. The article will be updated as soon as the information is confirmed!
Yale and Oliver's Intron
| I1 | If a [Tot Popper] is detonated by a different type of [Tot Popper] restores 1 point of Sanity for Yale and Oliver; if detonated by the same type, restores 2. |
|---|---|
| I2 | The Movement Speed decreased effect inflicted on enemies in [Nightmare Lab] is increased to 60%. |
| I3 | [Tot Popper] Level +2; [The Rules of Bomb] Level +1. |
| I4 | Wen deploying a [Tot Popper] in [Nightmare Lab], there's a 45.0% chance to deploy 1 additional [Tot Popper]. |
| I5 | [Nightmare's Grasp] Level 2+; [The Rules of Bomb] Level +1. |
| I6 | When Yale and Oliver is applied with [Bombing Frenzy], each deployed [Tot Popper] combines the features of both types, dealing higher damage and posing greater Stance reduction. |
Profile
| Gender | Female |
|---|---|
| Birthplace | Hyperborean Empire |
| Birthday | December 20 |
| Allegiance | Unaffiliated |
Yale and Oliver's Trats
| Tamer | Skilled in training Geniemons |
|---|---|
| Impression: Wisdom | Quick-witted or highly knowledgeable in specific fields. |
| Astute Mind | Adapts quickly and may obtain bonus rewards. |