Ok, going to try my newest one out. I was trying to go for something similar to the Hundred-Faced Hassan and take it a step further by having them all combine back together into someone more powerful.
Class: Assassin
Identity: The fifty daughters of Danaus of Argos, referred to as The Danaides.
They were pledged to marry the sons of Danaus' brother, Aegyptus of Egypt, in an alliance meant to spare the destruction of nearby lands by warfare.
On their wedding night, at their father's urging, all but one killed their husbands.
For this crime they were sentenced to Tartarus where they must spend eternity filling a bath that will never fill because of a leak, never able to wash away their sin.
Strength: E (C*)
Endurance: E (D*)
Agility: E (B*)
Mana: E (C*)
Luck: E (D*)
Class Skills:
Presence Concealment (D): Hides one's presence. Suitable for spying.
Personal Skills:
Expert of Many Specializations (A): Allows for a multitude of skills to be used with proficiency of Rank E to B depending on the personality of the particular daughter.
Divinity (D (C*)): Assassin's father Danaus is a grandson of Posiedon and a great-great grandson of Zeus. Grants some protection against attacks from those who possess ranks lower than Assassin.
Noble Phantasms:
Daughters of Danaus~ Forty-Nine Mariticides (B):
When Assassin is first summoned, she does not possess a true self. While she appears to be a single person, she is really an amalgamation of the 49 Danaides who killed their husbands. However, she can separate herself into 49 independent women, at the cost of about half her prana and reducing all her parameters to rank E. Each daughter has their own will, personality, strengths and weaknesses. This Noble Phantasm allows them to increase their numbers which makes it ideal for spying and reconnaissance, but due to the decrease in strength they are not suited to fighting other Heroic Spirits. They do not share experiences or thoughts, but they can read each other's general status when in close proximity to each other. This Noble Phantasm is representative of the daughters all executing a common act of murder at the same time, which bound them together in the Underworld.
*Merciful Daughter~ Hypermnestra (A):
On the fateful wedding night, Hypernmestra was the only daughter who spared her husband because he respected her wish to remain a virgin. As the most well known of the Danaides, this Noble Phantasm embodies her fame and strength of character. At any time, the Daughters can consent to assimilating back into one being; however they do not become the amalgamation they were summoned as. Instead, Assassin gains a definitive single identity in the form of the 50th sister: Hypermnestra. When this happens, her other Noble Phantasm is sealed, but she regains her original parameter rankings as well as an increase in her Divinity by one rank, since she alone received aid and blessing from Aphrodite after the bloody wedding. At the moment of her manifestation, she also gains a rank-up in Strength and Endurance for a short time, the length of which depends on how many of her sisters were remaining when this ability activated. This Noble Phantasm can be difficult to unleash, since it requires unanimous consent among her sisters, and some of them may not allow it, whether through simple selfishness or through duress or swaying by an enemy.