Frankly, unlike Amakusa Shiro, who was a Ruler Class, Henry Jekyll and Hyde was an Assasin Class.
So, what is a Class?
In simple terms, it is like a job in an MMORPG video game. A warrior, a ranger, a magician, a summoner, and so on. Whether it was the Ruler or the Assassin, they were like those jobs in the Fate Series game that were chosen based on their legends.
Let's say that a certain famous character, Miyamoto Musashi, was well-known for his swordsmanship, and based on that knowledge, the most suitable class for him to be in the Fate Series was the Saber.
Amakusa Shiro's Class was quite special, known as the Ruler, but Henry Jekyll and Hyde was known as the Assassin Class.
Still, is it important?
If it was a game, then it might be important since a combination of several types of Classes would bring a better victory than all similar classes.
If Kira had to give a better example, in the party of adventurers of the MMORPG game, having a tanker, a DPS, a healer, and other classes, depending on the needs, would bring a better victory than all similar classes of party such as all tankers.
However, if the case were his ability, which was a reality it wouldn't be that much of a problem since the class wasn't that important, and what was important was knowing to utilize that advantage better, and this what he did by understanding each of the skills, abilities, talents, and potentials that had assimilated into his body.
In the case of Henry Jekyll, who came from the Assasin Class, it gave him several skills, known as "Presence Concealment," "Monstrous Strength," "Voice of Panic," "Self-Modification," and "Powerless Shell."
The first skill is "Presence Concealment," which allows him to hide his presence and is suitable for espionage activities.
Simple, yet deadly, this is his impression.
The second skill is "Monstrous Strength," which allows him to increase his strength temporarily. This is what he used when he fought Natsu before. Compared to Natsu, his strength was weaker, but adding this skill and the reinforcement ability from Left Hand - Xanadu Matrix, he could match Natsu's strength, whose body was strengthened by the Dragon Slayer Magic.
The third skill is "Voice of Panic," which is a mental attack, using a voice to weaken his opponent.
He hadn't used it, but he might use it in the future, especially in his werewolf state, which could make him fight easier, yet he might need to master it first as it might affect his allies.
The fourth skill is "Self-Modification," an aptitude to remold one's own body or merge one's own flesh with body parts of others.
Was it used to make himself stronger by combining his body with others?
If Kira had to say, it was quite similar to the "Take Over" magic, which allowed the use of the strength of the creatures that were taken over, but unlike this skill that needed the use of surgery, he felt that the "Take Over" magic was better, and this was also the reason why his aptitude on the "Take Over" magic was quite good, he thought.
As for the last skill, which was the "Powerless Shell," while it was hard to understand, the only explanation that he could get was just to help him to become a better assassin, making him disguise himself better.
That said, compared to all of that, the best thing about this servant was its Noble Phantasm, Dangerous Game, an ability to allow him to become a different self, which was so powerful, including transforming into a werewolf.
Yes, this ability might be dangerous, but he had learned to accept his other self, and with the help of the members of the Fairy Tail, which included him into the Nakama power, he could control this ability without losing himself.
"Now, the last servant."
Mata Hari.
Yes, this was the third servant and the last servant that he gained.
As he had said previously, Mata Hari was a spy active in the underworld and lived the strangest life among all spies. An exotic dancer, she continued to bewitch military officers with her legs until the day she was executed as a spy.
Her history had various stories, especially during her execution; regardless, due to her history, she was also an Assasin Class, similar to Henry Jekyll and Hyde.
As for the skills he received from Mata Hari, he gained "Presence Concealment," "Espionage," "Pheromone," and "Double Cross."
The first skill, the "Presence Concealment," was similar to Henry's, so he wouldn't explain, but the second skill, the "Espionage," was a skill that made him appear as someone familiar or harmless, which made him become a talented spy.
Well, he didn't plan to become a spy, though.
As for the third skill, "Pheromone," it is a skill that allows him to control his pheromone, which can be used in many things, including making Natsu sleep during their previous fight. It has a lot of potential, but he hasn't learned it, so let's wait for a while.
As for the last skill, the "Double Cross"... frankly, Kira wasn't sure, but it was good for being a spy, that's all he knows.
As for her Noble Phantasm, while Kira hadn't tried it, Mata Hari, it was an ability that allowed him to manipulate the mind of his target, turning them those without resistance into his puppet, but the best thing about this ability was to allow him to do all of that without leaving a trace, and when one was affected once, it would be even harder for them to resist this ability.
Now, that's all of his servants and their explanations of skills and abilities.
As for the talents and potentials, it was quite hard for him to explain, but in his understanding, if he tried to develop a similar profession or a skill that is usually used based on their legends and anything related, it would be smoother.
Still, it didn't mean that he understood everything about this special ability, especially the Parameter part.
Every servant has a Parameter, which includes strength, endurance, agility, mana, and luck.
Luck aside, the rest were confusing as it was hard for him to gauge how strong the respective rank of the status be.
Let's say that the servant that he got had an A rank of Strength, as for how strong it was, compared to the mages in this world, he wasn't sure as he didn't understand the standard, yet he knew well that with all of those three servants abilities and skills, his strength was good enough.
Kira couldn't say that he could destroy the world, but by combining the advantages, abilities, and skills of those three servants, it should be okay to live comfortably and finish this quest that was taken by Lucy without any problems.
As he thought so, he felt a weight on his shoulder, and when he turned, he saw Lucy was sleeping, leaning on his shoulder, appearing so comfortable and happy. Sighing, he felt a bit helpless, thinking that this girl was as defenseless as ever.
"You are lucky to meet me."
If Lucy met someone else, the virginity that she took care of previously would be gone, especially in this world where human rights didn't exist.
As he thought so, he also closed his eyes, only opening them once again, especially when Lucy started to drool.
"...."
Should he throw her out?
As he tried to stop his urge to throw her out of the carriage, they arrived at the Shirotsume town, the place where they would start their first quest.
---
Sorry for the info-dump chapters!