Regret

Icon	Name	Level	Attack	Magic Attack
	Regret	60	198	33

How to Obtain

• Defeat EPS-209 Murphy then speak to Caviar

Weapon Effects

Twilight (Curio only)	Maxed
Critical damage+	30%
Obtain Skill: Thorn Throne	-

Name

Skills and Effects

Curio

2 Normal  Null  Thorn Throne MP 24 None Debuff Preemptive Inflict poison on a single enemy (3 turns, Ignore target resistance) and inflict Break Skill available with Regret equipped. 24 N/A 24 2 Equip Regret & Defeat ARPX-Sophie  Null  Thorn Throne MP 24 None Debuff Preemptive Inflict poison on all enemies (Persistent, Ignore target resistance) and inflict Break (persistent or 1 hit) Skill available with Regret equipped. 24 N/A 24 2 Normal  Shade Slash  Transient Glory MP 55 Shade Slash Shade type slash attack on a single enemy (XL) and PWR and INT of all party members +25% (3 turns) When in any Attack Type Stance: Sword/Katana/Ax equipped characters' damage +50% (3 turns) When in any Elemental Stance: Wind and Shade Type attack of all party members +50% (3 turns) 55 200% × Mod 55 2 Defeat ARPX-Sophie  Shade Slash  Transient Glory MP 55 Shade Slash Shade type slash attack on a single enemy (XL) and PWR and INT of all party members +35% (5 turns) When in any Attack Type Stance: Sword/Katana/Ax equipped characters' damage +50% (5 turns) When in any Elemental Stance: Wind and Shade Type attack of all party members +50% (5 turns) 55 200% × Mod 55 2 Normal  Wind Slash  Ups & Downs MP 49 Wind Slash Wind type slash attack on a single enemy x2 (S) Increase skill damage and increase number of hits when use consecutively x3, 225% / x4, 320% / x5, 420% (4th use onwards) Another Force Combo gain +20% (x1.2) When in Lunatic: Critical Rate for all party members +100% (1 move) 49 140%-420% × Mod 49 2 Defeat ARPX-Sophie  Wind Slash  Ups & Downs MP 49 Wind Slash Wind type slash attack on a single enemy x5 (S) Increase skill damage and increase number of hits when use consecutively x3, 225% / x4, 320% / x5, 420% (4th use onwards) Increase damage based on number of IDA School or Lost Laboratory characters in party Skill multiplier +105% per additional character (max 3 additional characters) Another Force Combo gain +20% (x1.2) When in Lunatic: Critical Rate for all party members +100% (1 move) 49 525%-840% × Mod 49

Upgrading

After finishing Ch2 of The Apex of Logic and Cardinal Scales, return to IDA School L Block to start a series of hidden bosses. Defeat each in order to upgrade the weapon.

Enemy	Unlock	ATK	MAT	Effects
EPS-209 Murphy	Ch2	161	27	Critical damage +15%
EPS-014 LeBlanc	Ch3	182	30	Critical damage +20%
EPS-245 Quadoxin	Ch5	182	30	Critical damage +25% Obtain Skill: Thorn Throne
EPS-227 Patel	Ch6	198	33	Critical damage +25%
ARPX-Sophie	Ch7	198	33	Critical damage +30% Enhance Skills: Ups & Downs, Transient Glory, and Thorn Throne

Trivia

This blade is named so due to the scientist's feelings at helping create the above mentioned monsters. She engineered this katana as a weapon to slay them.