FGO Servant Guide : Henry Jekyll & Hyde

 Henry Jekyll & Hyde
* * *
Obtained from clearing London

Stats : 

• ATK / HP with Fou upgrades at Lv. 70 : 7.310 / 10.665
• ATK / HP with Fou upgrades at Lv. 100 : 9.543 / 14.108
• NP Gain on Attack / Defense : 1.05% / 4%
• Star Generation Rate :  25.6%
• Card Set : QQABB
  • Quick : 2 hits
  • Arts : 2 hits
  • Buster : 1 hit
  • Extra : 3 hits

As the first servant that can change class while in battle, Jekyll & Hyde looks like he have a lot of potential. Let’s see what he got up his sleeve.

Looking at his stat, his HP is the highest among other *3 Assassins. Not to mention the HP upgrade he got when transforming to Hyde. It’s comparable to *5 at around 12.000++. As for the Attack stat, it’s… quite bad. His Attack stat is the lowest of all *3 Assassins, nearly tied with *2 Hassan, but still better than Hassan.
His NP Gain is quite high at 1.05% but his card deck is not helping much. I mean, with 1 Arts card and only 2 hits at that? It can take forever to fill up his NP. His AQQE combo is also not generating that much NP. We need his NP ASAP, so this is really, really bad. His star generation is quite bad as well for an assassin. 2 hits Quick card is not helping at all.

Passive Skill :

Presence Concealment A
As Assassin, Increases unit's critical star acquisition rate by 10%

Mad Enhancement A
 As Berserker, Increases damage of unit's Buster cards by 10%




As his card hit is bad, Presense Concealment is not helping much. But, as Hyde, Mad Enhancement really helped to boost his damage.

Active Skill :

Monstrous Strength B (Available from the start)
Increases own attack for 3 turns
5% / 6% / 7% / 8% / 9% / 10% / 11% / 12% / 13% / 15%
As Hyde, further increases own attack for 3 turns.
25% / 26% / 27% / 28% / 29% / 30% / 31% / 32% / 33% / 35%
Cooldown at Lv 1 / Lv 6 / Lv 10 : 7 / 6 / 5
Leveling priority : 1st

All of Jekyll’s skill are only great when he is already transformed to Hyde. 50% attack boost on lv 10 is freaking huge. Even better than Imperial Privilege attack boost. Even at lv 1, it’s still great at 30% attack boost. He really need this because of his low base attack. Max this first.

Voice of Panic A (Unlocks after 1st Ascension)
Increases own debuff success rate once.
5% / 6% / 7% / 8% / 9% / 10% / 11% / 12% / 13% / 15%
As Hyde, further increases own debuff success rate once.
85% / 90% / 95% / 100% / 105% / 110% / 115% / 120% / 125% / 135%
10% Chance to stun one enemy for 1 turn.
Cooldown at Lv 1 / Lv 6 / Lv 10 : 8 / 7 / 6
Leveling priority : 3rd

This skill is super good. As Hyde, he will stun enemies, guaranteed. 100% chance at Lv 1, 150% chance at Lv 10, absolutely great. Heck, why not just change it to guaranteed stun. Just remember to not use it as Jekyll. Because you can utilize it to it’s fullest from lv 1, max it last.

Self-Modification D (Unlocks after 3rd Ascension)
Increases own critical damage for 3 turns5% / 6% / 7% / 8% / 9% / 10% / 11% / 12% / 13% / 15%
As Hyde, further increases own critical damage
25% / 26% / 27% / 28% / 29% / 30% / 31% / 32% / 33% / 35%
Cooldown at Lv 1 / Lv 6 / Lv 10 : 7 / 6 / 5
Leveling priority : 3rd

Another great skill if you can feed him crit star as Hyde. 50% crit damage boost is great, on par with Self-Modification A and EX. Sadly he doesn’t get the star absorption buff like them. Max it second.

NOBLE PHANTASM

Dangerous Game
The Secret Game of Sin
Rank C (C+ after NP upgrade)
 As Hyde, this Noble Phantasm does nothing

Changes unit's class to Berserker.
Increases Max HP and Recovers all HP [Level]
Rank C : 2000 / 3500 / 4250 / 4625 / 5000
Rank C+ : 3000 / 4500 / 5250 / 5625 / 6000
Increases unit's Buster card damage indefinitely [Overcharge]
Rank C : 20% / 30% / 40% / 50% / 60%
Rank C+ : 40% / 50% / 60% / 70% / 80%

His NP is what makes him a powerhouse. +6000 HP at level 5 is great for him, reaching about 15000 HP. He need this for survivability because as Berserker, he’s weak to pretty much everything. The buster damage boost is really helping him boosting his damage. 80% buster damage boost indefinitely at 500% NP is no joke, although I’m sure it will be hard to achieve that because we want to transform him at the start of boss battle. I usually only managed to fill his NP to 200%, but that’s enough for me.

Recommended CE : Starting NP CE (Kaleidoscope, Teacher and I, Golden Sumo ~Rocky Area~, Participation of the King, Imaginary Number Magecraft)

Kaleidoscope, IMO is the best CE you can give to Jekyll. 100% starting NP when max LB and +2000 attack at lv 100, Jekyll will love you so much. It helps his low base attack and give him option to transform from the start of the battle. Even if it’s not max LB, 80% starting NP is great, better than any starting NP CE out there.

Golden Sumo CE is also really great for any servant that need starting NP gauge from the start by giving it +50% NP gauge and it also give them +15% attack at max LB. It also have 2000 attack at lv 100 too.

With +60% starting NP , +15% Buster damage, and 2000 attack at lv 100, Participation of the King is a another great option for Buster-based servant, and Jekyll is no exception.

Another CE that I recommend is Teacher and I, with 60% starting NP and crit star absorb +400% at max LB. This makes his 3rd skill very, very good. Sadly, this CE doesn’t increase attack but +3000 HP at lv 100 is great.

We also got Imaginary Number Magecraft, with 75% starting NP at max LB. Also, you can easily get this because this is a *4 CE, not like Kaleidoscope.

For *3 CE, you have Ley Line, with 50% starting NP at max LB. Great if you don’t have other recommended CE because you can easily farm this from Friend Gacha.

Overall, Jekyll is quite complicated for me at first, but after using him after few times, he is quite nice. His damage and skill as Jekyll are awful but once he’s transformed to Hyde, it all changes. His team composition is basically Buster Team, with someone to boost his buster damage and someone to heal or tank for him. Helena and Waver is best support for him. Shakespeare is great too. Leonidas is great as well, he can tank and boost buster damage. His only competiton so far in *3 Assassin ladder is Fuuma, because while Fuuma is not attack focused, his debuff skill is much better than Jekyll, and his base damage is better too.

Great damage, awesome skills, he is definitely on my top tier *3 servant list. If you like him and have the resources, go ahead and use him.

Like this guide? Check my other servant guide here!