Flame Reaver of the Deepest Dark

This article is about the normal variant Boss Enemy. For other uses, see Phainon (Disambiguation).

Flame Reaver of the Deepest Dark

Flame Reaver of the Deepest Dark
Dawn-Denied Khaslana

Toughness

240

Details
Abilities
Voice Actors

Faction

Cosmos

English

Joshua Waters^[1]

Flame Reaver of the Deepest Dark is a Boss Enemy part of the Cosmos faction.

Enemy Info

Flame Reaver of the Deepest Dark

A nameless swordmaster who came with the black tide and is hunting down the Titans' Coreflame. None knows their true identity.
Their power is incredible, and their swordplay is nigh impeccable. Within their swords, madness and obsession entwine, once leading to the fall of the Grove of Epiphany and Aedes Elysiae.

Dawn-Denied Khaslana

A nameless swordsman, borne by the black tide to hunt Coreflames, wears a mask carved with the stoic visage of a deliverer... Yet his form crumbles like dying kindling.
From the flames echoes hollowness: All is futility.

Stats

Damage RES

20%	20%	0%	0%	20%	0%	20%

Debuff RES

0%	0%	75%	0%	0%	75%	75%	0%

Toggle Full Levels

Level	HP	ATK	DEF	SPD	Eff. H. R.	Eff. RES
1	2,418	12	210	132	0%	30%
2	3,174	14	220	132	0%	30%
3	3,325	15	230	132	0%	30%
4	4,118	20	240	132	0%	30%
5	4,318	21	250	132	0%	30%
6	4,522	22	260	132	0%	30%
7	4,730	23	270	132	0%	30%
8	4,941	25	280	132	0%	30%
9	5,155	26	290	132	0%	30%
10	5,373	26	300	132	0%	30%
11	5,751	29	310	132	0%	30%
12	6,128	32	320	132	0%	30%
13	6,505	34	330	132	0%	30%
14	6,882	37	340	132	0%	30%
15	7,259	40	350	132	0%	30%
16	7,636	42	360	132	0%	30%
17	8,013	45	370	132	0%	30%
18	8,390	48	380	132	0%	30%
19	8,767	50	390	132	0%	30%
20	9,144	53	400	132	0%	30%
21	9,814	57	410	132	0%	30%
22	10,484	62	420	132	0%	30%
23	11,155	66	430	132	0%	30%
24	11,825	71	440	132	0%	30%
25	12,495	75	450	132	0%	30%
26	13,165	80	460	132	0%	30%
27	13,835	84	470	132	0%	30%
28	14,505	89	480	132	0%	30%
29	15,176	93	490	132	0%	30%
30	15,846	98	500	132	0%	30%
31	17,140	104	510	132	0%	30%
32	18,434	109	520	132	0%	30%
33	19,728	115	530	132	0%	30%
34	21,023	121	540	132	0%	30%
35	22,317	127	550	132	0%	30%
36	23,611	132	560	132	0%	30%
37	24,905	138	570	132	0%	30%
38	26,200	144	580	132	0%	30%
39	27,494	150	590	132	0%	30%
40	28,788	155	600	132	0%	30%
41	32,601	163	610	132	0%	30%
42	36,414	171	620	132	0%	30%
43	40,227	179	630	132	0%	30%
44	44,040	187	640	132	0%	30%
45	47,853	195	650	132	0%	30%
46	51,666	203	660	132	0%	30%
47	55,479	210	670	132	0%	30%
48	59,292	218	680	132	0%	30%
49	63,105	226	690	132	0%	30%
50	66,919	234	700	132	0%	30%
51	76,163	244	710	132	0.8%	30.4%
52	85,407	255	720	132	1.6%	30.8%
53	94,651	265	730	132	2.4%	31.2%
54	103,895	276	740	132	3.2%	31.6%
55	113,139	286	750	132	4%	32%
56	122,383	297	760	132	4.8%	32.4%
57	131,627	307	770	132	5.6%	32.8%
58	140,871	317	780	132	6.4%	33.2%
59	150,115	328	790	132	7.2%	33.6%
60	159,359	338	800	132	8%	34%
61	172,133	348	810	132	8.8%	34.4%
62	184,907	358	820	132	9.6%	34.8%
63	197,681	368	830	132	10.4%	35.2%
64	210,455	377	840	132	11.2%	35.6%
65	223,229	387	850	145.2	12%	36%
66	236,003	397	860	145.2	12.8%	36.4%
67	248,777	407	870	145.2	13.6%	36.8%
68	261,551	416	880	145.2	14.4%	37.2%
69	274,325	426	890	145.2	15.2%	37.6%
70	287,099	436	900	145.2	16%	38%
71	303,125	447	910	145.2	16.8%	38.4%
72	319,152	459	920	145.2	17.6%	38.8%
73	335,178	471	930	145.2	18.4%	39.2%
74	351,205	482	940	145.2	19.2%	39.6%
75	367,231	494	950	145.2	20%	40%
76	383,257	506	960	145.2	20.8%	40%
77	399,284	517	970	145.2	21.6%	40%
78	415,310	529	980	158.4	22.4%	40%
79	431,337	541	990	158.4	23.2%	40%
80	447,363	552	1,000	158.4	24%	40%
81	469,961	563	1,010	158.4	24.8%	40%
82	493,394	574	1,020	158.4	25.6%	40%
83	517,695	585	1,030	158.4	26.4%	40%
84	542,895	597	1,040	158.4	27.2%	40%
85	569,027	608	1,050	158.4	28%	40%
86	596,126	619	1,060	174.24	28.8%	40%
87	624,227	630	1,070	174.24	29.6%	40%
88	653,369	641	1,080	174.24	30.4%	40%
89	683,588	652	1,090	174.24	31.2%	40%
90	714,926	663	1,100	174.24	32%	40%
91	747,423	674	1,110	174.24	32.8%	40%
92	781,123	685	1,120	174.24	33.6%	40%
93	816,075	696	1,130	174.24	34.4%	40%
94	852,309	707	1,140	174.24	35.2%	40%
95	889,890	718	1,150	174.24	36%	40%
96	928,861	729	1,160	174.24	36.8%	40%
97	969,273	740	1,170	174.24	37.6%	40%
98	1,011,182	751	1,180	174.24	38.4%	40%
99	1,054,640	762	1,190	174.24	39.2%	40%
100	1,099,707	773	1,200	174.24	40%	40%
120	4,398,828	1,082	1,200	198	56%	40%

Skills

Phase 1
Phase 2

But Suffering is Essential

[AoE ATK]

20 Energy

Flame Reaver of the Deepest Dark But Suffering is Essential

Consumes all "" and deals several instances of minor Physical DMG hits (100% ATK) to all targets, where the more consumed "Calamity Power" stacks, the higher the instances of DMG (2 Instances Per Stack). Then, deals minor Physical DMG (200% ATK) to all targets.

Demise's Storm

[Blast]

10 Energy

Flame Reaver of the Deepest Dark Demise's Storm

Deals Physical DMG to one designated target (400% ATK) and units adjacent to the target (200% ATK).

Fading Fate

[AoE ATK]

10 Energy

Flame Reaver of the Deepest Dark Fading Fate

Deals Physical DMG (300% ATK) to all targets. Converts a portion of the hit target's reduced HP (60%) to "".

Roads Mingled

[Enhance]

Causes "Long-Shattered Vessel" to enter the "Mutual Sacrifice" state. Uses "Underworld's Grief" in a certain number of turns.

Underworld's Grief

[AoE ATK]

10 Energy

Unleashes "Demise's Storm" or "Fading Fate" together with "Long-Shattered Vessel." Then, absorbs "Long-Shattered Vessel" (2) to heal this unit and obtains "."

Flame Reaver of the Deepest Dark Underworld's Grief

Flame Reaver of the Deepest Dark Underworld's Grief 2

Pain of Parting

[Talent]

When using "Demise's Storm" or "Fading Fate," consumes HP (2% Current HP Per Vessel) to summon "Long-Shattered Vessel" (2/4 in Phase 1/2) and convert the consumed HP into "." If the "Long-Shattered Vessel" summoned by this attack is defeated, additionally deals Physical DMG to this unit (5% Max HP). When this unit uses "Demise's Storm" or "Fading Fate" again, the "Long-Shattered Vessel" that was summoned by the attacking ability will attack together with this unit. This unit will then absorb the Vessel, restoring the HP that was converted to "" and granting "" (1 Stack Per Vessel Absorbed) to this unit.

Resolute Farewell

[Talent]

Receives a certain number of stacks of "DMG reduction," (8 Stacks) reducing DMG received by this unit (5% Per Stack). 1 stack is lost after defeating 1 "Long-Shattered Vessel."

Cry Not For The Discarded

[AoE ATK]

15 Energy

Flame Reaver of the Deepest Dark Cry Not For The Discarded

Deals Physical DMG (300% ATK) to all targets and consumes all "" to additionally deal several instances of minor Physical DMG (160% ATK). The more consumed "Calamity Power" stacks, the higher the instances of DMG (1 Instance Per Stack).

Demise's Storm

[Blast]

10 Energy

Deals Physical DMG to one designated target (400% ATK) and units adjacent to the target (200% ATK).

Fading Fate

[AoE ATK]

10 Energy

Flame Reaver of the Deepest Dark Fading Fate 2

Deals Physical DMG (300% ATK) to all targets. Converts a portion of the hit target's reduced HP (80%) to "".

Roads Mingled

[Enhance]

Causes "Long-Shattered Vessel" to enter the "Mutual Sacrifice" state. Uses "Underworld's Grief" in a certain number of turns.

Underworld's Grief

[AoE ATK]

10 Energy

Flame Reaver of the Deepest Dark Underworld's Grief 3

Unleashes "Demise's Storm" or "Fading Fate" together with "Long-Shattered Vessel." Then, absorbs "Long-Shattered Vessel" (4) to heal this unit and obtains "."

Silent Sorrow

[Charging]

Obtains "" (8 Stacks) and enters the "Silent Sorrow" state. Uses "Cry Not For The Discarded" in the next action.

Pain of Parting

[Talent]

When using "Demise's Storm" or "Fading Fate," consumes HP (2% Current HP Per Vessel) to summon "Long-Shattered Vessel" (2/4 in Phase 1/2) and convert the consumed HP into "." If the "Long-Shattered Vessel" summoned by this attack is defeated, additionally deals Physical DMG to this unit (5% Max HP). When this unit uses "Demise's Storm" or "Fading Fate" again, the "Long-Shattered Vessel" that was summoned by the attacking ability will attack together with this unit. This unit will then absorb the Vessel, restoring the HP that was converted to "" and granting "" (1 Stack Per Vessel Absorbed) to this unit.

Lost Sacrifice

[Talent]

When using "Silent Sorrow," consumes HP (5% Current HP Per Vessel) to summon a "Long-Shattered Vessel" (4) and converts the consumed HP into "." When stacks of "" are not at 0 and if a "Long-Shattered Vessel" receives a killing blow, immediately consumes 1 stack of "" and a percentage of HP (5% Current HP) to re-resummon a "Long-Shattered Vessel." When using "Cry Not For The Discarded," absorbs any "Long-Shattered Vessel" and restores the HP that was converted to "."

Resolute Farewell

[Talent]

Receives a certain number of stacks of "DMG reduction," (8 Stacks) reducing DMG received by this unit (5% Per Stack). 1 stack is lost after defeating 1 "Long-Shattered Vessel."

Dawn-Denied Khaslana

Cry Not For The Discarded

[AoE ATK]

15 Energy

Deals Physical DMG to all targets and consumes all "" to additionally deal several instances of minor Physical DMG. The more consumed "Calamity Power" stacks, the higher the instances of DMG.

Demise's Storm

[Blast]

10 Energy

Deals Physical DMG to one designated target (350% ATK) and units adjacent to the target (200% ATK).

Fading Fate

[AoE ATK]

10 Energy

Deals Physical DMG (300% ATK) to all targets. Converts a portion of the hit target's reduced HP (60%) to "".

Roads Mingled

[Enhance]

Causes "Long-Shattered Vessel" to enter the "Mutual Sacrifice" state.

Underworld's Grief

[AoE ATK]

10 Energy

Unleashes "Demise's Storm" or "Fading Fate" together with "Long-Shattered Vessel." Then, absorbs "Long-Shattered Vessel".

Silent Sorrow

[Charging]

Obtains "" and enters the "Silent Sorrow" state. Uses "Cry Not For The Discarded" in the next action.

Pain of Parting

[Talent]

When using "Demise's Storm" or "Fading Fate," summons "Long-Shattered Vessel." When "Long-Shattered Vessel" is defeated, this unit loses HP. When this unit uses "Demise's Storm" or "Fading Fate" again, "Long-Shattered Vessel" summoned by this attack will also attack, then become absorbed by this unit.

Lost Sacrifice

[Talent]

When using "Silent Sorrow," summons "Long-Shattered Vessel". When "Dawn-Denied Khaslana" is in the "" state and "Long-Shattered Vessel" receives a killing blow, instantly resummons "Long-Shattered Vessel" and reduces the Toughness of "Dawn-Denied Khaslana."

Shackle Shatter

[Enhance]

Enters the "" state, summons 4 "Long-Shattered Vessels," and puts these "Long-Shattered Vessels" in the "Shackled" state.

Calamity's Resurrection

[Talent]

After losing the first layer of Toughness, dispels all Control debuffs, enters "" state, and immediately takes action.

Long-Shattered Vessel

Mutual Sacrifice: Demise's Storm

[Blast]

5 Energy

Deals minor Physical DMG to one designated target (50% ATK) and units adjacent to the target (25% ATK).

Mutual Sacrifice: Fading Fate

[AoE ATK]

5 Energy

Deals minor Physical DMG (50% ATK) to all targets. Converts a portion of the hit target's reduced HP (60%/80% in Phase 1/2) to "".

Prayers For Me

[Talent]

Resists Crowd Control debuffs. When "Flame Reaver of the Deepest Dark" uses "Demise's Storm" or "Fading Fate" again and if this unit was summoned by that attack type, then this unit will attack alongside "Flame Reaver of the Deepest Dark." This unit is then absorbed by "Flame Reaver of the Deepest Dark," restoring the HP that was converted to "," and granting "" (1 Stack) to the Flame Reaver.

Libations For Me

[Talent]

After receiving a killing blow, if the number of "" stacks on "Flame Reaver of the Deepest Dark" is not 0 and Flame Reaver of the Deepest Dark is in the "Silent Sorrow" state, this unit is immediately resummoned. However, "Flame Reaver of the Deepest Dark" will lose 1 stack of "" and a certain percentage of HP (5% Current HP). When "Flame Reaver of the Deepest Dark" uses "Cry Not For The Discarded," this unit will be absorbed and the HP that was converted to "" will be restored.

Unique Status Effects

Buffs

Icon	Name	Description
	Renewal	The next attack's DMG dealt increases by 30%.

Others

Icon	Name	Description
	Calamity Power	(Unremovable) When using certain abilities, consume all "Calamity Power" stacks to increase Hits Per Action.
	Corrosion	After attacking, restore a portion of Corroded HP (20% Per Target). The more targets are attacked, the more HP is restored. When Corrosion is dispelled via restorative means, obtain "Renewal."
	Entangled by Agony	(Unremovable) After absorbing "Long-Shattered Vessel," restores the HP consumed to summon the current "Long-Shattered Vessel." After "Long-Shattered Vessel" is defeated, this unit cannot restore the HP consumed used to summon the current "Long-Shattered Vessel" again.
	Silent Sorrow	(Unremovable) Use "Cry Not For The Discarded" during the next action.

Blood of "Strife"

During Phase 2 of the third battle against Flame Reaver of the Deepest Dark (during Trailblaze Mission Nemesis, Scorched by Golden Blood), Mydei will gain energy every time a character uses a Basic ATK or Skill. Once Mydei reaches 100 Energy, the Ultimate ability Blood of "Strife"‍^{[it may be named Mydei instead]} will become available. When used, this ability deals massive amounts of Imaginary DMG.

Gameplay Notes

Contrary to what the in-game Ability menu indicates, Demise's Storm is never used in Phase 2.
The Flame Reaver will re-obtain 8 stacks of DMG Reduction when entering Phase 2.
The next action after Silent Sorrow is delayed by 100%.
While the Flame Reaver is in the "Silent Sorrow" state, Breaking their Weakness will dispel the "Silent Sorrow" state and remove all "Calamity Power" stacks.
When fought in Pure Fiction, several changes are applied:
- This boss has only one phase, which uses its Phase 2 moveset.
- The Talent Lost Sacrifice is changed to this: When the current "Calamity Power" stacks are not 0, if "Long-Shattered Vessel" receives a killing blow, immediately consumes 1 stack of "Calamity Power."
- The damage dealt by the bounces of Cry Not For The Discarded are decreased from 160% ATK to 40% ATK.
The Dawn-Denied Khaslana variant of Flame Reaver of the Deepest Dark additionally has a Physical Weakness.

Achievements

There are 2 Achievements related to Flame Reaver of the Deepest Dark:

	Name	Category	Description	Hidden	Version
	One Who Lost Their Shadow	Eager for Battle	Allows Flame Reaver of the Deepest Dark to cast "Underworld's Grief" consecutively 2 times in Phase 1 without triggering a synergy with Long-Shattered Vessel	No	3.1	5
	One Who Is Without Shadow	Eager for Battle	Defeat all Long-Shattered Vessels during the Flame Reaver of the Deepest Dark's casting of "Silent Sorrow"	No	3.1	5

Voice-Overs

English
Chinese
Japanese
Korean

Attack or Condition	Audio & Transcription
Entered Phase 2	▶
Defeated	▶ Still... chained...
Defeated	▶ ▶
Hit by Light Attack	▶ Torment...
Hit by Light Attack	▶ ▶ ▶
Hit by Heavy Attack	▶ Agony...
Hit by Heavy Attack	▶ ▶ ▶
Hit While Weakness Broken	▶
Roads Mingled	▶ All will one day die...
Roads Mingled	▶ This world... is a fallen leaf.
Silent Sorrow	▶ Suffering... is eternal.
Silent Sorrow	▶ Unchanging, unceasing...
But Suffering is Essential	▶ Defiant... break the chains!
But Suffering is Essential	▶ Unyielding... smash the idols!
Cry Not For The Discarded	▶ Sanguine darkness... drown the sun!
Cry Not For The Discarded	▶ (2× speed) Drown the sun!

Attack or Condition	Audio & Transcription
Entered Phase 2	▶
Defeated	▶ 仍被...束缚...
Defeated	▶ ▶
Hit by Light Attack	▶ 折磨...
Hit by Light Attack	▶ ▶ ▶
Hit by Heavy Attack	▶ 苦痛...
Hit by Heavy Attack	▶ ▶ ▶
Hit While Weakness Broken	▶
Roads Mingled	▶ 人皆有死。
Roads Mingled	▶ 世如落叶。
Silent Sorrow	▶ 苦难永恒。
Silent Sorrow	▶ 无变无休。
But Suffering is Essential	▶ 忤逆...斩断锁链！
But Suffering is Essential	▶ 不屈...砸碎神像！
Cry Not For The Discarded	▶ 黑夜如血，淹没白日！
Cry Not For The Discarded	▶ (2× speed) 淹没白日！

Attack or Condition	Audio & Transcription
Entered Phase 2	▶
Defeated	▶ まだ...縛られたまま...
Defeated	▶ ▶
Hit by Light Attack	▶ これが痛み...
Hit by Light Attack	▶ ▶ ▶
Hit by Heavy Attack	▶ これが苦痛...
Hit by Heavy Attack	▶ ▶ ▶
Hit While Weakness Broken	▶
Roads Mingled	▶ 死は人の定め
Roads Mingled	▶ 落葉の如き世界
Silent Sorrow	▶ 永遠の苦難
Silent Sorrow	▶ 不変、不休...
But Suffering is Essential	▶ 反逆、鎖を断ち切る！
But Suffering is Essential	▶ 不屈、神像を砕く！
Cry Not For The Discarded	▶ 血の如き闇が、太陽を吞み込む！
Cry Not For The Discarded	▶ (2× speed) 太陽を吞み込む！

Attack or Condition	Audio & Transcription
Entered Phase 2	▶
Defeated	▶ 아직도... 속박 되어있는건가...
Defeated	▶ ▶
Hit by Light Attack	▶ 고초...
Hit by Light Attack	▶ ▶ ▶
Hit by Heavy Attack	▶ 고통은...
Hit by Heavy Attack	▶ ▶ ▶
Hit While Weakness Broken	▶
Roads Mingled	▶ 인간은 누구나 죽는다.
Roads Mingled	▶ 세상이 낙엽 같군.
Silent Sorrow	▶ 고난은 영원하리.
Silent Sorrow	▶ 변함없이, 이어지리.
But Suffering is Essential	▶ 불복, 사슬을 끊어라!
But Suffering is Essential	▶ 불굴, 신상을 부숴!
Cry Not For The Discarded	▶ 피 같은 어둠, 태양을 삼켜라!
Cry Not For The Discarded	▶ (2× speed) 태양을 삼켜라!

Soundtracks

No.	Soundtrack Name	Album	Played In
2	A Hunt for the Divine	Allegory of the Cave (Part 2)	Flame Reaver of the Deepest Dark (Phase 2)
9	Infernal Blaze	Allegory of the Cave (Part 3)	Flame Reaver of the Deepest Dark (Dawn-Denied Khaslana)
1	Touch of the Broken Blade	Allegory of the Cave (Part 2)	Flame Reaver of the Deepest Dark (Phase 1)

Other Languages

Flame Reaver of the Deepest Dark

Language	Official Name
English	Flame Reaver of the Deepest Dark
Chinese (Simplified)	至黑之剑，盗火行者
Chinese (Traditional)	至黑之劍，盜火行者
Japanese	漆黒しっこくの剣つるぎ、フレイムスティーラー
Korean	암흑의 검, 불을 훔치는 자
Spanish	Roballamas de la Oscuridad
French	Voleur de flammes de la lame des ténèbres
Russian	Похититель пламени глубокой тьмы
Thai	โจรล่าเปลวไฟ ผู้ถือดาบทมิฬ
Vietnamese	Thanh Kiếm Hắc Ám, Hành Giả Trộm Lửa
German	Flammendieb der tiefsten Dunkelheit
Indonesian	Flame Reaver of the Deepest Dark
Portuguese	Salteador de Chamas da Escuridão Mais Profunda

Dawn-Denied Khaslana

Language	Official Name
English	Dawn-Denied Khaslana
Chinese (Simplified)	「无缘黎明」卡厄斯兰那
Chinese (Traditional)	「無緣黎明」卡厄斯蘭那
Japanese	「黎明に届かぬ者」カスライナ
Korean	「여명과의 무연」 카오스라나
Spanish	Khaslana, Amanecer Denegado
French	Khaslana, l'Aube égarée
Russian	Отверженный рассветом Каослана
Thai	"ผู้ไร้ชะตาพบอรุณ" Khaslana
Vietnamese	Khaslana "Không Có Duyên Với Bình Minh"
German	Khaslana der verwehrten Dämmerung
Indonesian	Dawn-Denied Khaslana
Portuguese	Khaslana que Negou o Alvorecer

Change History

Released in Version 3.1

[Edit History]

Version 3.7

Faction changed from Black Tide Creature to Cosmos.

Version 3.2

Faction changed from Cosmos to Black Tide Creature.

Version 3.1

Flame Reaver of the Deepest Dark was released.

References

↑ Joshua Waters (December 22, 2025). EN VA Self Announcement. Twitter. Retrieved January 21, 2026.

Navigation

[1] Joshua Waters (December 22, 2025). EN VA Self Announcement. Twitter. Retrieved January 21, 2026.

[1]