English has never been my forte so I must apologize in advance.
I'm sorry that it will be lengthy but I was told that I shouldn't take a rework lightly
Some of this idea came from a years of reading other people's suggestion in reddit and official forum
It seem that Dark Knight could use a rework, which I will explain how below
First
let me show how the order of unlocking the Job Action of Dark Knight shall be restructured according to this rework suggestion
1 Hard Slash
2 Syphon Strike,Anima,Channeling
6 Unleash,Gift of Darkness
10 Grit
15 Unmend
26 Souleater
30 Darkbringer
35 Dark Emissary
38 Shadow Wall
40 Stalwart Soul
45 Dark Affinity, Dark Impact
50 Living Dead
54 Plunge
56 Shadow Drain,Aetherward
60 Dark Essence,Dark Drive
62 Black Blood,Blood Gale
64 Blood Force,Blood Storm,Blood Rain
66 Power Slash,Abyssal Drain,Impaler
68 Blood Weapon
70 The Blackest Night
72 Enhanced Combo
74 Enhanced Blood Gale
80 Dark Impact Mastery,Dark Wave
82 Channeling Mastery,Focused Channeling,Enhanced Dark Emissary,Enhanced Aetherward
86 Dark Drive Mastery, Dark Impulse
88 Enhanced The Blackest Night
90 Ring of Pain, Iron Maiden
-------------------------------------------------
Next : Detail of each Actions
Syphon Strike
LV2. Type : Weaponskill. Targeting : Enemy. Range 3y. Radius 0y. Recast 2.5s
Combo Action : Hard Slash. Combo Potency : 260. Combo Bonus : Increase Anima Gauge by 10
[Grain another Combo Bonus : Increase Blood Gauge by 10 after unlocked Black Blood]
[Restore MP effect is removed]
Anima
LV2. Type : Trait
Allows for accumulation of Anima Gauge upon the landing of following actions,Syphon Strike, Shadow Drain and Abyssal Drain.
Channeling
LV2. Type : Ability. Targeting : None. Range 0y. Radius 0y. Recast 2s. Cost : 30 Anima Gauge
Restore Own HP. Cure potency : 1200.
Gift of Darkness
LV6. Type : Trait
Nullify Silence and reduces spell cast time and recast time, and auto-attack delay by 4%.
Souleater
LV26. Type : Weaponskill. Targeting : Enemy. Range 3y. Radius 0y. Recast 2.5s
Combo Action : Syphon Strike. Combo Potency : 340.
[Gain another Combo Bonus : Increase Blood Gauge by 20 after unlocked Black Blood]
[Restore HP Effect is removed]
Darkbringer
LV30. Type : Ability.Targeting : Enemy. Range 10y. Radius 10y. Recast 1s. Maximum Charges: 4. Charge Time : 15s
Deals unaspected damage to all enemies in a straight line before you with a potency of 250 for the first enemy, and 60% less for all remaining enemies.
[Gained Additional Effect : Grant 1 stack of Dark Affinity after unlocked Dark Affinity]
[Gained Additional Effect : Grant 1 Dark Essence after unlocked Dark Essence]
Dark Emissary
LV35. Type Ability. Targeting : Self or Ally. Range 30y. Radius 0y. Recast 60s. Duration 20s. Cost : 30 Anima Gauge
Grant 10 stack of Dark Emissary,Each stack restore the target's HP when the target suffered a damage.
Cure Potency : 200.
Any remaining stack will be consume to restore hp when the effect expires.
Stalwart Soul
LV40. Type : Spell. Targeting : None. Range 0y. Radius 5y. Recast 2.5s
Combo Action : Unleash. Combo Potency : 140.
[Gain Combo Bonus : Increase Blood Gauge by 20 after Unlocked Black Blood]
[Restore MP effect is removed]
Dark Affinity
LV45. Type :Trait
Grant Dark Affinity upon landing Darkbringer. A maximum of 4 stack can be stored
Dark Impact
LV45. Type : Weaponskill. Targeting : Enemy. Range 3y. Radius 0y. Recast 2.5s Cost : 1 Dark Affinity Stack.
Deliver an attack with a potency of 250. Potency increases up to 1000 as stacks of Dark Affinity exceed minimum cost.
Consume all Dark Affinity stack upon execution.
Living Dead
LV50. Type : Ability. Targeting : None. Range 0y. Radius 0y. Recast 300s. Duration 10s.
Reduce HP to 1 and prevent most attack from reducing your HP to less than 1.
Additional Effect : Restore HP when effect expired, cure potency : 1200.
Shadow Drain
LV56. Type : Ability.Targeting : Enemy. Range 25y. Radius 0y. Recast 25s.
Deals unaspected damage with a potency of 150.
Additional Effect : Increase Anima Gauge by 30
Aetherward
LV56. Type : Ability.Targeting : Self or Ally. Range 30y. Radius 0y. Recast 25s. Duration 10s. Cost : 30 Anima Gauge
Creates a barrier around self or target party member that absorbs damage equivalent to a heal of 1200 potency.
Dark Essence
Lv60. Type : Trait
Grant Dark Essence upon the landing of Darkbringer. A maximum of 4 stack can be stored
Dark Drive
Lv60. Type : Weaponskill. Targeting : Enemy. Range 10y. Radius 10y. Recast 2.5s. Cost : 1 Dark Essence
Deals unaspected damage to all enemies in a straight line before you with a potency of 350 for the first enemy, and 60% less for all remaining enemies.
Black Blood
LV62. Type : Trait
Allows for Blood Gauge accumulation upon the landing of the following actions,Syphon Strike Souleater,Stalwart Soul and Impaler.
Blood Gale
Lv62. Type : Spell. Targeting : Enemy. Range 10y. Radius 10y. Recast 2.5s Cost 50 Blood Gauge.
Deals unaspected damage to all enemies in a straight line before you with a potency of 490 for the first enemy, and 60% less for all remaining enemies.
Action changes to Blood Storm while under the effect of Blood Force.
Blood Storm
LV64. Type : Spell. Targeting : Enemy. Range 15y. Radius 15y. Recast 2.5s Cost 50 Blood Gauge.
Deals unaspected damage to all enemies in a straight line before you with a potency of 520 for the first enemy, and 60% less for all remaining enemies. Grant Blood Rain Ready upon execution. Duration 15s.
Action is changed to Blood Rain for the duration of the effect.
Can only be executed while under effect of Blood Force. This action cannot be assigned to a hotbar.
Blood Rain
LV64. Type : Ability. Targeting : Enemy. Range 25y. Radius 5y. Recast 1s.
Deals unaspected damage to target and all enemies nearby it with a potency of 200 for the first enemy, and 50% less for all remaining enemies.
Can only be executed while under the effect of Blood Rain Ready. Effect fades upon execution. This action cannot be assigned to a hotbar.
Blood Force
Lv64. Type : Ability. Targeting : None. Range 0y. Radius 0y. Recast 25s. Duration 25s. Cost 50 Blood Gauge
Increases potency of next weaponskill or spell by 50%.
Power Slash
LV66. Type : Weaponskill. Targeting : Enemy. Range 3y. Radius 0y. Recast 2.5s
Combo Action : Syphon Strike. Combo Potency : 400.
Abyssal Drain
LV66. Type : Spell. Targeting : Enemy. Range 25y. Radius 5y. Recast 2.5s
Combo Action : Unleash. Combo Potency : 170. Additional Effect : Increase Anima Gauge by 20
[Restore Hp effect is removed]
Impaler
Lv66. Type : Weaponskill. Targeting : Enemy. Range 25y. Radius 5y. Recast 30s.
Delivers an attack to target and all enemies nearby it with a potency of 300 for the first enemy, and 60% less for all remaining enemies. Increase Blood Gauge by 50.
Blood Weapon
Lv68. Type : Ability. Targeting : None. Range 0y. Radius 0y. Recast 60s. Duration 30s.
Grant 5 stack of Blood Weapon, each stack allow you to increases Blood Gauge by 10 upon landing weaponskills or spells.
Can only be executed while in combat. Effect does not stack when hitting multiple targets with a single attack.
The Blackest Night
LV70. Type : Ability. Targeting : None. Range 0y. Radius 15y. Recast 90s. Duration 15s.
Creates a barrier around self and all nearby party members that absorbs damage equivalent to a heal of 400 potency.
Apply Blind to all nearby enemies when your barrier is completely absorbed. Radius : 15y. Duration 15s.
Enhanced Combo
LV72. Type : Trait
Increase Combo Potency of Souleater to 400,Power Slash to 460,Stalwart Soul to 170 and Abyssal Drain to 200
Enhanced Blood Gale
Lv74. Type : Trait
Increase potency of Blood Gale to 550, Blood Storm to 600 and Blood Rain to 300
Dark Impact Mastery
LV80. Type : Trait
Upgrades Dark Impact to Dark Wave
Dark Wave
LV80. Type : Weaponskill. Targeting : Enemy. Range 15y. Radius 15y. Recast 2.5s
Deals unaspected damage to all enemies in a straight line before you with a potency of 450 for the first enemy, and 60% less for all remaining enemies. Potency increases up to 1800 as stacks of Dark Affinity exceed minimum cost. Dark Affinity Stack Cost : 1. Consume all Dark Affinity stack upon execution.
Channeling Mastery
Lv82. Type : Trait
Upgrades Channeling to Focused Channeling
Focused Channeling
LV82. Type : Ability. Targeting : none. Range 0y. Radius 0y. Recast 2s. Cost : 30 Anima Gauge
Restore own HP. Cure potency : 1200
healing potency increases up to 1800 as own HP decreases, reaching its maximum value when You has 30% HP or less.
Enhanced Dark Emissary
Lv82. Type : Trait
Add Shadow Skin Effect to Dark Emissary.
Shadow Skin Effect : Reduce damage taken by 10%. Duration 20s.
Enhanced Aetherward
Lv82. Type : Trait
Add Reinforce Effect to Aetherward.
Reinforce Effect : Reduce damage taken by 20%. Duration 4s.
Dark Drive Mastery
Lv86. Type : Trait
Upgrades Dark Drive to Dark Impulse
Dark Impulse
LV86. Type : Weaponskill. Targeting : Enemy. Range 10y. Radius 10y. Recast 1.5s. Cost : 1 Dark Essence
Deals unaspected damage to all enemies in a straight line before you with a potency of 400 for the first enemy, and 60% less for all remaining enemies.
Recast timer cannot be affected by status effects or gear attributes.
Enhanced The Blackest Night
Lv88. Type : Trait
Increase potency of barrier by 400
Ring of Pain
Lv90. Type : Spell. Targeting : Enemy. Range 25y. Radius 5y. Recast 60s. Duration 15s.
Envelops a designated area in a veil of darkness, inflict paralysis on any enemies who enter. When the effect expires, or when the target leaves the ring, deals unaspected damage with a potency of 300 for the first enemy, and 50% less for all remaining enemies within the range of Ring of Pain that you have set up. Effect fade when such attack is triggered.
Additional Effect : Grant Painbringer, increase damage dealt by 10%. Duration 15s.
Additional Effect : Grant Iron Maiden Ready. Duration 20s.
Action is change to Iron Maiden for the duration of the effect.
Iron Maiden
LV90. Type : Spell. Targeting : Enemy. Range 25y. Radius 5y. Recast 1.5s.
Deals unaspected damage to target and all enemies nearby it with a potency of 200 for the first enemy, and 50% less for all remaining enemies.
Can only be executed while under the effect of Iron Maiden Ready. Effect fades upon execution. This action cannot be assigned to a hotbar.
Recast timer cannot be affected by status effects or gear attributes.