Blackblood (PvP)
Able to execute powerful weaponskills.
— In-game description
Blackblood is a beneficial status effect that 
dark knights apply to themselves. It is received by executing certain actions. Blackblood allows for one execution of the Scarlet Delirium combo – the effect fades after execution.
There are two actions that can apply Blackblood. Both actions grant Blackblood for 10 seconds:
| Action | Acquired | 
|
Level | Type | MP | Casting | Recast | Range Radius |
Description |
|---|---|---|---|---|---|---|---|---|---|
| Shadowbringer (PvP) | DRK
|
30 | Ability | Instant | 1s |  10y 10y
|
Deals unaspected damage with a potency of 6,000 to all enemies in a straight line before you. Consumes 12,000 HP when executed. Additional Effect: Grants Blackblood. Duration: 10s Cannot be executed when current HP is lower than 20% ※Souleater Combo changes to Scarlet Delirium while under the effect of Blackblood. ※Souleater Combo changes to Comeuppance while under the effect of Comeuppance Ready. ※Souleater Combo changes to Torcleaver while under the effect of Torcleaver Ready. | ||
| Eventide (PvP) | DRK
|
30 | Limit Break | Instant | 10s | 0y 30y
|
Delivers an attack with a potency of 8,000 to all enemies in a straight line before and behind you. Potency increases up to 24,000 as HP nears maximum. HP is reduced to 1 upon execution. Additional Effect: Grants Undead Redemption Undead Redemption Effect: Most attacks cannot reduce your HP to less than 1, and you absorb 100% of weaponskill damage dealt as HP Duration: 10s Additional Effect: Grants Blackblood Duration: 10s Additional Effect: Grants Scorn Duration: 15s Can only be executed when the limit gauge is full. Gauge Charge Time: 105s ※Action changes to Disesteem while under the effect of Scorn. ※Souleater Combo changes to Scarlet Delirium while under the effect of Blackblood. ※Souleater Combo changes to Comeuppance while under the effect of Comeuppance Ready. ※Souleater Combo changes to Torcleaver while under the effect of Torcleaver Ready. |
Gameplay
Subsequent applications of Blackblood will refresh its timer to 10 seconds.
Executing Shadowbringer will grant Blackblood at the cost of 12,000 HP or 
Dark Arts, which is granted for 15 seconds if the barrier of The Blackest Night is consumed.
Executing Eventide will set the dark knight's HP to 1 and grant Blackblood, along with other status effects.
Blackblood is spent when executing any weaponskill from the Scarlet Delirium combo. This means that dark knights will need to execute Shadowbringer again in order to execute the next action within the combo.
The Scarlet Delirium combo will replace the basic Souleater combo. This basic combo will be preserved, but the timer before it resets will continue counting down while Blackblood is active. The Scarlet Delirium combo is its own self-contained combo – being on Syphon Strike will not replace it with Comeuppance when under the effect of Blackblood. Furthermore, this combo cannot expire, as it is a permanent buff-based combo. Being KO'd will reset the combo. Comeuppance instead is only executable after having already executed Scarlet Delirum. Once Torcleaver, the final hit of the combo, is executed, the combo will reset back to Scarlet Delirium.
The Scarlet Delirium combo is usually always a gain over the Souleater combo. This is because the potencies of the former's actions are increased when executed at lower HP values. Executing Shadowbringer may further lower the dark knight's HP, while also dealing AoE damage in itself. This results in dark knight having one of the highest single-target DPS in PvP that can be executed at any time.
History
Patch 6.1 (2022-04-12): Added.