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Label Rarity SSR.png
Icon Blue Star Full.pngCan be uncapped to 4★
Weapon b 1040000000.png

Label Element Fire.png Label Weapon Sabre.png HP ATK C.A.×
Level 1 33 445 ??
Level 100 216 2580 ??
Level 150 253 3010 ??
Character UnlockObtaining this weapon unlocks a character.
Drawing additional copies beyond the first will instead earn a Gold Moon.
Npc s 3040001000 01.jpg Altair
Icon Level Uncap.png Unlock Uncap
4★ Complete Altair Lvl 45 Fate Episode "The Truth of the Stolen Tome"

ID 1040000000
JP Name ダーインスレイブ
JP TitleIn the past many weapons had custom titles. Now replaced with series titles in game. 吸血剣
Release Date 2014-05-08
4★ Date 2016-07-22
Other Sites
Icon Gamewith.pngGamewith Icon Kamigame.pngKamigame

Weapon ls 1040000000.jpg
Weapon s 1040000000.jpg
Weapon m 1040000000.jpg

This demonic blade spent an eternity absorbed in bloodshed. Eventually it transformed into a magic sword that spreads death and destruction in its wake.
Charge Attack
Skill charge attack.png Hyeznin Rune Massive Fire damage to a foe.
Restore MC's HP (Healing cap: 1500).
Additional effect at 4★:
Healing cap increased to 2000.
Weapon Skills
Ws skill atk 1 3.png
Inferno's Might Big boost to fire allies' ATK
120 Unlocks at level 120: Unlocks at level 120:
Ws skill job weapon.png
Strategist's Temperament 7% boost to MC's charge bar gain.[1]
Sword Master Skills
Effect Cooldown Duration Cost
Awaken 150% Fire damage to all foes. 10TAs Sword Master / 8TAs Glorybringer / 6TAs Master Lvl 30
- -
Resonance Gain Status DoubleUp.pngDA UpDouble attack rate is boosted
Duration: 2 turns
7T 2T Costs 3 energy
Attack Restore caster's HP (Healing cap: 300). - - Costs 1 energy
Defend Gain Status AttackUp.pngATK UpATK is boosted
Duration: 3.5 turnsApplied during the attack phase.
On the next turn, it'll have 3 turns remaining.
- 3.5T Costs 2 energy
4★ Uncap
Rupies square.jpg Rupies ×10,000
Base Reduction Materials
Keep 1 fully-uncapped copy. Others are safe to reduce. Do not use as fodder.
Although otherwise weak, this weapon's second skill can be used to minimize skill usage in OTK setups.

Gameplay Notes

Strategist's Temperament

  • Main Character fills up charge bar 7% faster.[1]
    • The weapon doesn't have to be equipped as mainhand for the boost to take effect.