Dungeon Boss Wiki
Black Diamond
Fast Assassin Rogue 
Silver Hero



Element: Light
30% vs Dark units


Excess Tokens:
1 Token → 10 Aether

Unlocked
Background
She wouldn't be recruited. Said her mission was her own. - Overlord Executum
Abilities & Traits
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Attack Speed Fast
Attack Range Melee/Ranged
Damage Physical
Epic Crusader Blade
Buddy Synergy None
Combat Style

Black Diamond's chief weapon is surprise. Surprise and a sweet blade.
Damage (6/9)
Toughness (3/9)
Team Support (5/9)
Crowd Control (4/9)
Synergy (6/9)
See Hero Rating for more details about this.

Statistics Total Bonus1 Traits2 Epic Base
Attack (ATK) +110% +105% -20% +20% 1220
Defense (DEF) +152% +105% - +20% 1198
Skill (SKL) +156% +105% +22% - 1322
Max Health (HP) +173% +105% - +30% 4471
Crit Chance (CRIT) 50% +34% +11% - 5%
Crit Multiplier 256% - +56% - 200%
Dodge Chance 22% - +22% - 0%
Damage Penetration 0% - - - 0%
Damage Reduction 0% - - - 0%
Chaos Damage Reduction 0% - - - 0%

1Bonus (ATK, DEF, SKL, HP) includes Hero Stars (★★★★★★) and Hero Rarity.
2Stats affecting Traits:  Fast Martial Artist Weak Spot

Resistances
Fire
Burned
0%
0%
Nature
Poisoned
Wounded
0%
0%
0%
Water
Frozen
Chilled
Cryosleep
Frostbitten
0%
0%
0%
0%
0%
Light 33%
Lightning
Shocked
Paralysis
33%
33%
33%
Dark
Diseased
Banished
0%
0%
0%
Spirit
Feared
Stoned
Possessed
Marked
6%
6%
6%
6%
6%

Abilities (Active) Traits (Passive)
Swing Fast
Blade Storm Martial Artist
Assassinate Weak Spot
Assassin's Wrath Light Assault
Master Assassin
Surprise Technique

First Ascension
Second Ascension
Abilities & Traits

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Abilities & Traits

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Required Hero Stars and Evos

Evo Cost Index: 3090

Evo Cost Index: 4200

Epic Black Diamond
Effect: Chance to deal 2x damage with a chance to buff team +50% CRIT Multiplier.


Epic Part 2 Part 3
Crusader Blade Wings of Fury Bladed Knuckles
If you have Black Diamond at level 50 or higher and fully ascended,
you can make this hero Epic.

Doing this raises it's Max Health/Defense/Attack by a set percentage,
as well as adding a special effect to it's Basic Attack.
Check Epic Heroes for more information.

 Black Diamond tokens: x1 x6 + Daily Quests Treasure Room Heroic Summon
Main Campaign Dungeons: (1)
Chapter Lvl. Rooms Enemies Area Evos Boss
4-7 Icy Hollow 12 7 3 8 Ice Cave Yirishi Reborn
Challenge Mode Dungeons: (6)
Chapter Lvl. Rooms Enemies Area Evos Boss
5-5 Shogunate Fortress 5 4 Crypt Amatsu Takeda
9-2 Sleepless Respite 5 3 Ice Cave Demora Ametryst
12-3 Past the Wall 5 6 Forest Archmage Lumos
15-6 Smoldering Trail 5 3 Lava Cave Snorgal le Swine
17-4 Rune Shrine 5 5 Mountain Flame Master Nyx
21-4 Scarred Lands 5 4 Lava Cave Queen Mariel
Rune Slots: (standard)
Black Diamond has the standard rune slots for a Light hero.
Light Light Fire Nature Water
Abilities & Traits: &

Swing
Basic Attack (None)

A Basic Melee Physical attack.


Blade Storm
Special Attack (5 turns, AoE)

Ranged Physical attack on all enemies.


Assassinate
Special Attack (4 turns), requires 1st Ascension

Critical Melee Physical attack and additional attacks on random enemies per killing blow during the attack.
Effects | Extra Attacks


Assassin's Wrath
Special Attack (5 turns), requires 2nd Ascension

Buffs team +CRIT, then does a Critical Melee Physical attack.
Effects | CRIT+


Fast
Trait (Passive)

Attacks first, but Attack is reduced by 20% and Skill is boosted by 20%. (Heroes sharing the same Speed go in order of positioning, left to right, as chosen at the beginning of the battle. See Attack Speed for details.)


Martial Artist
Trait (Passive)

Increased CRIT (+10%) and Dodge chance (+20%).


Weak Spot
Trait (Passive)

Increased CRIT Multiplier by [50%], percentage increases slightly with SKL. (Does not stack with the buff of the same name.)
Effects | Weak Spot


Light Assault
Trait (Passive), requires 1st Ascension

Light Allies gain Martial Artist, buffing +10% CRIT and +20% Dodge chance.


Master Assassin
Trait (Passive), requires 2nd Ascension

Self and allied single target abilities deal 100% more Damage on CRITs.


Surprise Technique
Trait (Passive), requires 2nd Ascension

All Assassin allies gain a chance to apply Off-Balance on basic attacks.

Buffs & Debuffs:

CRIT+ - buff (Attack)
Target has a boosted CRIT Chance.

Extra Attacks - effect (Attack/Damage)
The target or allies have the chance to do an extra basic attack. This can be a result of a buff (like Haste), or granted by a trait (like Valkin's Lead By Example). There are also a few rare runes that have a passive/4th stat (20% chance for an extra attack). An extra basic attack can trigger an Epic effect (with a few exceptions like Hog Wild). Note: There is no icon for this effect. It's used on this wiki page only.

Weak Spot - buff (Attack/Damage)
+50% CRIT Multiplier.
Immunities & Damage Reduction: Under construction, see above 'Buffs & Debuffs'
Ascensions: (3090) = + &
(4200) = +
First Ascension Second Ascension
Light Evo Larva 30x Astral Evo 4x
Light Evo 10x Light Evo Monarch 10x
Nature Evo Larva 9x Nature Evo 30x
Valkyrie Evo 5x
Assassinate (Special Attack/4 Turns) Assassin's Wrath (Special Attack/5 Turns)
Light Assault (Trait/Passive) Master Assassin (Trait/Passive)
Surprise Technique (Trait/Passive)
Synergies of Assassin heroes (Family):
 Black Diamond can get following passive buffs when teamed up with other Heroes:

Assassin Heroes get the following passive buffs:

 Acrobatic Technique (Trait) by  Aria
Assassin allies take 25% reduced damage from melee attacks. Enemies deal 25% reduced damage while Provoked, Paralyzed, or Off-Balance.
 Assassin Troupe (Trait) by  Aria
Allied Assassins gain +15% ATK and +15% DEF for each Assassin ally.
 Stealth Technique (Trait) by  Masuta Kira
Assassin allies have a chance to enter Stealth (takes -50% damage until the hero's next turn) at the start of the dungeon and at the end of their action.
 Secret Technique (Trait) by  Sifu Jianzhi
All Assassin allies gain Shield Piercing on basic attacks.
 Forbidden Technique (Trait) by  Shadowblade
Self and allied Assassins start dungeons with Evasion lasting 1 turn.
 Surprise Technique (Trait) by  Black Diamond
All Assassin allies gain a chance to apply Off-Balance on basic attacks.
 Warrior's Chi (Special Attack) by  Sifu Jianzhi
Heals self, then grants self and allied Assassins and Warriors DEF+ buff, +1 Energy and Haste.
 Null-Magic Technique (Trait) by  Serenity
Other Assassin allies have a chance to apply Null-Magic on a basic attack, a status that prevents the next buff added.
 Epic Spell Absorption (Trait) by  Serenity
Allies take significantly reduced damage from non-Physical (-60%) and Chaos attacks (-20%). Assassin allies take even less damage (-70% and -30%, respectively). (This trait replaces 'Sanctified Spell Absorption' when the Epic is unlocked.)
Synergies of Light heroes (Element):
 Black Diamond can get following passive buffs when teamed up with other Heroes:

Light Heroes get the following passive buffs:

 Avatar of Light (Trait) by  Leonidus
Light allies are immune to Dark elemental bonuses.
 Born of the Stars (Trait) by  Balur
All Light allies take 50% reduced Chaos Damage.
 Light Assault (Trait) by  Black Diamond
Light Allies gain Martial Artist, buffing +10% CRIT and +20% Dodge chance.
 Light Heart (Trait) by  Lumin the Radiant, Zen
Increase Health by [15/25]% for all Light allies depending on the rank (I/II) of this trait.
 Righteous Follower (Trait) by  Deadeye
Do a follow-up basic attack after any attack from a Light or Honorbound ally.
 Speed of Light Team (Trait) by
+15% ATK, +15% DEF and +10% Dodge Chance for self and Light allies.
 Will of the Wisp II (Trait) by  Ekko
Immune to Spirit, Lightning, and Light attacks. High resistance (75%) to Paralysis. [Light allies start Dungeons with +1 extra energy]. The text in [brackets] is of rank II of this trait (I/II).
 Veil of Voltage (Trait) by  Jin Lei
All Light and Honorbound Heroes gain 10% Damage Reduction and gain +1 Energy whenever they deal damage to a Shocked enemy.
Synergies of Rogue heroes (Class):
Other Synergies of Heroes:
 Black Diamond can get following passive buffs when teamed up with other Heroes:

All Heroes get the following passive buffs:

 Adept Strikes (Trait) by  Serenity
Allies and self gain Haste after using a single target Melee Physical attack once per round.
 Critical Energy (Trait) by  Indigo
Grants team +1 Energy on CRITs.
 Cleansing Aura (Trait) by  Dagrund Blacksmoke, Kelpy Shells
If the Hero can act at the end of the round, cleanses 1 Debuff on all allies.
 Cloak of Fire (Trait) by  Ember Sanguine
Allies gain immunity to burn and take 50% less damage from fire attacks.
 Eyes of the Beholder (Special Attack) by  Iris
Buffs team +ATK, then does a Ranged Dark attack on enemies.
 Fiery Renewal (Trait) by  Ember Sanguine
Whenever a Burn debuff is applied to an enemy, all allies gain +5% max health.
 Fire Nova (Special Attack) by  Ignus the Mad
Ranged Fire attack on all enemies, with Rage adding an additional chance to Burn. Grants team Burning Touch (chance to Burn on Basic attacks).
 Frost-Tipped Blades (Trait) by  Samurai Takumi
Grants the team a chance to Chill on Melee Physical attacks.
 Icy Embrace (Trait) by  Icebloom
All allies heal [25/35/50]% of their maximum health when inflicted with Frozen. Enemy and ally skills inflicting Frozen on allies will trigger this effect. The gained health depends on rank (I-III) of this trait.
 IFF Targeting (Basic Attack) by  Bauble
Melee physical attack on target enemy, OR heals target friendly construct, OR target ally gains a class-specific buff (Tanks get DEF+, Healers get CRIT+ and SKL+, Casters get +1 ENERGY, all others get ATK+.)
 Immunize (Trait) by  Mire, Zen
Each ally healed will gain Impervious (Cannot be Poisoned, Burned, Frozen, Chilled, Shocked, nor Diseased) for two turns.
 Master Assassin (Trait) by  Black Diamond
Self and allied single target abilities deal 100% more Damage on CRITs.
 Mend (Trait) by  Chief NubNub
Heal Team for [50% ATK] on CRIT. Triggers when landing a critical hit from a basic attack.
 Not Alone (Trait) by  Alrakis Skullkeeper, Lumin the Radiant
This hero gains +10% Damage Reduction for each other living ally.
 Sanctified Spell Absorption (Trait) by  Serenity
Allies take significantly reduced damage from non-Physical (-60%) and Chaos attacks (-20%).
 Sanctified Swamp (Trait) by  Grettle
All allies take 50% reduced Chaos Damage.
 Shell Power (Trait) by  Grondar
Allied Heroes gain Shell protection (allies cannot be Burned, Frozen, Chilled, Paralyzed or Shocked).
 Shielding Soul (Trait) by  Dagrund Blacksmoke
When killed, remaining allies gain an Aegis Shield.
 Spellseeker Weapons (Trait) by  Serenity
Allies Melee attacks have a chance to purge a buff on basic attack and can’t be retaliated against by Melee attackers.
 Spread the Wealth (Trait) by  Augustus
When at full HP, this Hero heals the team for a % of his HP every turn.
 Team Energy Vault (Trait) by  Ekko
Self and allies are immune to Exhaustion (=Energy Loss that is caused by use of abilities). Note: Passive traits like epic Malice "All Hope is Lost" can still drain energy.
 Team Precision (Trait) by  Pignius Maximus
Boosted CRIT damage for all allies. CRIT Multiplier is increased by [50%], percentage increases slightly with SKL.
 Venomous Embrace (Trait) by  Cobressa
Heals allies when Venom is applied on the enemies by Cobressa. The heal amount increases with the rank (I/II) of this trait. Enemies immune to Venom prevent the heal effect.
 Shard of Darkness (Trait) by  Craw, Mire
Allies start dungeons with [1/2/3] stacks of Foresight.
 Tempered Soul (Trait) by  Alrakis Skullkeeper
All allies and self gain an additional [5%/10%/15%] Chaos Damage Reduction (max 50%), depending on the rank of this trait (I/II/III). Skill increases the percent value.
 The Calm Before (Special Attack) by  Jin Lei
Silences all enemies and Buffs allies' Damage. This Hero gains stacks of Storm Power equal to the number of Light or Honorbound Heroes on the team. Starts Powered. (The Empowered Buff to applied to all allies and the caster to double (2x) their damage.)
Counters:
 Black Diamond can be countered by making use of the following traits and special attacks:

Light Heroes are vulnerable to:

 Light Hunter (Trait) by  Overlord Executum
1.5x damage against Light enemies.
 Angelic (Trait) by  Archangel Emily
Cannot be Poisoned, Burned, Frozen, Chilled, Envenomed, Shocked, or Diseased and starts dungeons with an [Aegis Shield].
 Will of the Wisp (Trait) by  Ekko
Immune to Spirit, Lightning, and Light attacks. High resistance (75%) to Paralysis. [Light allies start Dungeons with +1 extra energy]. The text in [brackets] is of rank II of this trait (I/II).
Dodger Heroes are vulnerable to:

 Dwarven Resolve (Trait) by
 Dagrund Blacksmoke
 Dhaegon Stonecrusher
 Hagrim Felhorn
 High King Valkin
 Rogar Stonecrusher
 Therand Fiddlestrom
Cannot Miss and enemies cannot Dodge this Hero's attacks. Boosted damage against targets with a high Dodge chance.
 Perfect Swing (Trait) by
Cannot Miss and enemies cannot Dodge this Hero's attacks.
 Master of Combat (Trait) by
 Hansuke Undying
 Samurai Takumi
Armored Hero that cannot Miss or be Dodged.
 Provoking Poke (Basic Attack) by  Aria
Undodgeable Melee Physical attack that Provokes target enemy.
 Toxic Spittle (Special Attack) by
Ranged Poison attack with a chance to Poison.
Non-Armored Heroes are vulnerable to:

 Flesh Shredder (Trait) by
 Jabber Clenchjaw
 Jibber Clenchjaw
 Mangle Jaw
2x damage against non-Armored targets.
 Incite Doom (Special Attack) by  Emperor Zulkodd
3 Melee Physical attacks on target enemy that deals 3x damage to non-Armored targets. If target dies, all other enemies' HP is set to 75% of their current HP.
Skins: (1)
Black Diamond

Phantom Black Diamond

Uses in PVE[]

Put her in the first slot/make her move first in Campaign instead of a raid so she can use her  Blade Storm as soon as possible not only that use her to cause massive carnage when destroying all her foes or use Black Phantom to scare them all.

Notes and Tips[]

Her 2nd and 3rd special attacks,  Assassinate and  Assassin's Wrath, guarantee a CRIT directly excellent.

Gallery[]