Dumas

[Chief Librarian] Dumas

Relevance: Must Have
Energy Decrease Energy Recovery Block HP Recovery Block Max HP% Damage
Red
SSR+
Warrior
Physical

Rankings

Deficit < 350:

Irregular

Deficit > 350:

Irregular

Limit
Deficit Performance Rating indicates the deficit range where this unit can effectively operate:
• 0 stars: Cannot work at any deficit
• 1 stars: ~200 deficit
• 2 stars: ~300 deficit
• 3 stars: ~400 deficit
• 4 stars: ~700 deficit
• 4.5 stars: 1000+ deficit
• 5 stars: Unlimited deficit
Versatility
Team Compatibility Measures how flexible the unit is in team compositions:
• 0 stars: Cannot function in any team
• 1 stars: Strict teammate requirements, not versatile
• 3 stars: Moderate flexibility
• 5 stars: Extremely plug and play
Utility
Team Support Value Evaluates how useful the unit's effects are to the team:
• 0 stars: No utility, completely selfish unit
• 1 stars: Almost non-existent utility, selfish unit
• 3 stars: Moderate utility
• 5 stars: Extremely useful effects

Pros

  • Great HP% Damage
  • Good Survivability
  • HP Recovery Block & Energy Decrease

Cons

  • Might die if targeted too heavily

Rapport Item

Medal of Honor Medal of Honor

Special Move - Rosario Ignition

Dumas becomes Invincible and throws 4 ignited Rosario's Blades at random enemies, dealing 50% of the target's Max HP as DMG (or 800% of ATK as DMG if the target is a boss), Stealing 200 Energy, and inflicting Stun for 3 sec.

If a blade fails to deal damage because the enemy is Invincible or due to their EVA, he blocks Energy Recovery for 10 sec and strikes the target with Lightning Strike after 3 sec, dealing 40% of the target's Max HP as DMG (or 800% of ATK as DMG if the target is a boss) twice.

Active Skill - Rosario's Blade

Dumas deploys Rosario's Blade to deal 400% of his ATK as DMG to nearby enemies 20 times and Jolt them.
The deployment range of the blade expands 2 additional times while the skill is active.

Active Skill - Precise Strike

Dumas powerfully thrusts the spear held in both hands forward, dealing 400% of his ATK as DMG to the enemy in a straight line 3 times.

The enemy taking DMG Bleeds, taking 200% of ATK as DMG every second for 8 sec.

Passive - Immortal Armor

Immortal Armor is activated at the start of the battle and when Dumas' HP drops to 1, he gains 30 Hit Barriers that last for 6 sec.

If the Hit Barriers do not disappear for 6 sec, he recovers 100% of his Max HP and reactivates the Immortal Armor effect.

EE Stat

Lifesteal

Level 1 Effect

When Dumas uses Rosario’s Blade, releases all debuffs on him.

Level 2 Effect

The ATK coefficient of Rosario’s Blade increases by 200%.

Level 3 Effect

Dumas blocks HP Recovery of enemies afflicted with Bleed from Precise Strike for 8 sec.

Level 4 Effect

Dumas recovers 500 Energy at the start of the battle.

Revolution 4: Immortal Armor

Each time Immortal Armor is activated, Dumas recovers 1000 Energy.

Revolution 5: Rosario Ignition

Dumas blocks HP Recovery on targets hit by Rosario Ignition for 20 sec.

Revolution 6 [PvP ONLY]

Dumas’ HP increases by 100% and his DEF by 120% in PVP.
(Cannot be removed with buff removal skills.)

Revolution 1
Effect Resistance
Revolution 2
EVA
Revolution 3
Lifesteal
Revolution 4
Critical DMG Increase
HP
Revolution 5
DEF
Critical Hit Resistance
Revolution 6
Special Move Resistance
Max Cooldown Reduction

For detailed information on which investment is needed, please refer to the "Investment Guide" section.

Notes

Both Runda and Doris are going to be really solid, based on which effect you need most in your team.
If you want to focus on personal survivability for Dumas, Rafflesia is a great choice.
El can offer a survivability boost as well, but I didn't like it as much.
Idea could be fine as it allows for a quick early spam of the Special Move, but feels unnecessary.
You can run Alocasia too, but in high Hard Mode floors it will be completely useless, check your EVA and the enemy ACC before you decide on this set.
Bari is not useful on Dumas, I would not consider it.

For detailed information on stats and upgrades, please check the Investment Guide section below.

General Information

What does this unit provide to the team?

Frontline Unit, HP Recovery Block, Energy Decrease, HP% Damage

What does this unit need from the team?

A bit of Survivability

Which enemies should you avoid?

Multiple Enemies with Multi-hit Attacks

Which enemies is this unit good against?

Healers and Units that rely on their Special Move

Unit Synergies

Alphine
Alphine
Shadow Girl
Alphine provides enough Survivability to sustain Dumas easily, and she also provides useful buffs for the rest of the team.
Xia Xia
Xia Xia
Elite Spy
Xia Xia's 2s Invincibility is often enough to make Dumas survive through most things.
Tiara
Tiara
Lunatic
Tiara is here as an example of a second tank unit that can help take some hits instead of Dumas. Any frontline unit that can survive for a long time works.

Basic Teams

These are just example teams and are by no means the best possible combinations. We avoid using units that are not easily obtainable or common.

Mono-Color Team

Xia Xia
Xia Xia
Elite Spy
Dumas
Dumas
Chief Librarian
Beta
Beta
Escaped
Albelda
Albelda
Soul Fragment
Cassano
Cassano
Fallen Wings
This is a bit of a weird team, we have three frontline units, with Albelda linked to Cassano so that he can also provide a bit of grouping.

Multi-Color Team

Alphine
Alphine
Shadow Girl
Dumas
Dumas
Chief Librarian
Xia Xia
Xia Xia
Elite Spy
Gustang
Gustang
Family Head
Sharon
Sharon
Fairy Sword
This is a comp built around Gustang, with Alphine and Xia Xia boosting the survivability of the whole team and Sharon protecting Gustang. Sharon can be 0 dupes and Gustang also doesn't need to be maxed.
Mandatory
Recommended
Nice to Have

Rankings

Deficit < 350

High Ranker

Deficit > 350

High Ranker

Requirements

Dupes
Star Star Star
EE

+30

Rapport

Lv. 6

Gear Configuration

Slot 1

+0

Slot 2

+0

Slot 3

+0

Slot 4

+0

If your ACC is lower than the enemy EVA, a Slot 1 upgrade might be needed if you care about whether this unit hits or not.
If upgrading Slot 3 can get your EVA to be higher than the enemy ACC, upgrading Slot 3 could be worth it.
If your Deficit is higher than 300 / 350, Slot 4 Resistances are pretty much ineffective and can be left to +0.
The flat ATK, DEF and HP stats are useless.

Ignition Weapon

Slot 1

+16

Slot 2

+12

Slot 3

+12

Slot 4

+16

Effect Resistance
Slot 5

+16

Physical Pierce
Recommended Substats:

Physical Pierce, Crit DMG Increase, ACC, EVA, Effect Resistance, Effect Hit, Crit Rate Increase

Notes:

Slot 4 you can run Effect Hit instead, especially if you are running Rafflesia.
Slot 5 is not important; you can run Physical Pierce or Critical Hit Rate.
For Substats, the most important ones are ACC, Effect Resistance and Effect Hit.

Rankings

Deficit < 350

Irregular

Deficit > 350

Irregular

Requirements

Dupes
Star Star Star Star Star
EE

+35

Rapport

Lv. 6

Gear Configuration

Slot 1

+0

Slot 2

+0

Slot 3

+0

Slot 4

+0

If your ACC is lower than the enemy EVA, a Slot 1 upgrade might be needed if you care about whether this unit hits or not.
If upgrading Slot 3 can get your EVA to be higher than the enemy ACC, upgrading Slot 3 could be worth it.
If your Deficit is higher than 300 / 350, Slot 4 Resistances are pretty much ineffective and can be left to +0.
The flat ATK, DEF and HP stats are useless.

Ignition Weapon

Slot 1

+20

Slot 2

+16

Slot 3

+16

Slot 4

+20

Effect Resistance
Slot 5

+20

Physical Pierce
Recommended Substats:

Physical Pierce, Crit DMG Increase, ACC, EVA, Effect Resistance, Effect Hit, Crit Rate Increase

Notes:

Slot 4 you can run Effect Hit instead, especially if you are running Rafflesia.
Slot 5 is not important; you can run Physical Pierce or Critical Hit Rate.
For Substats, the most important ones are ACC, Effect Resistance and Effect Hit.

Revolution

Revolution Tier:
Revolution 5
Revolution Cost:
fragment 2100
shining fragment 6200
ore 0
Subnodes (Ordered by Priority) Stats in bold are important. Stats in italic are optional and should be leveled only if needed and up to the level you actually need. i
  • Effect Resistance (Level 20)

Rankings

Deficit < 350

Irregular

Deficit > 350

Irregular

Requirements

Dupes
Star Star Star Star Star
EE

+40

Rapport

Lv. 6

Gear Configuration

Slot 1

+0

Slot 2

+0

Slot 3

+0

Slot 4

+0

If your ACC is lower than the enemy EVA, a Slot 1 upgrade might be needed if you care about whether this unit hits or not.
If upgrading Slot 3 can get your EVA to be higher than the enemy ACC, upgrading Slot 3 could be worth it.
If your Deficit is higher than 300 / 350, Slot 4 Resistances are pretty much ineffective and can be left to +0.
The flat ATK, DEF and HP stats are useless.

Ignition Weapon

Slot 1

+20

Slot 2

+20

Slot 3

+20

Slot 4

+20

Effect Resistance
Slot 5

+20

Physical Pierce
Recommended Substats:

Physical Pierce, Crit DMG Increase, ACC, EVA, Effect Resistance, Effect Hit, Crit Rate Increase

Notes:

Slot 4 you can run Effect Hit instead, especially if you are running Rafflesia.
Slot 5 is not important; you can run Physical Pierce or Critical Hit Rate.
For Substats, the most important ones are ACC, Effect Resistance and Effect Hit.

Revolution

Revolution Tier:
Revolution 5
Revolution Cost:
fragment 2100
shining fragment 6200
ore 0
Subnodes (Ordered by Priority) Stats in bold are important. Stats in italic are optional and should be leveled only if needed and up to the level you actually need. i
  • Effect Resistance (Level 20)
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