Now, we all know GBF has formulas especially to when computing your damage output and a lot of guides are already out there to help you understand why there is a need to diversify your grid’s modifiers and whatnot but while damage formula is fully available to everyone, I don’t think there’s a readily available guide to HP computations and with the release of Belial summon earlier this month, the lines are just a tad bit blurred with regards to how your final HP is even computed. Luckily, I was able to snag 1 copy of Belial during the roulette and with that, I’m now here to give you a breakdown on it.
Now before, I begin, here’s the general knowledge I’ll be using for this guide and I expect readers to also know it already and that’s the fact that all weapon HP increase skills are additive to one another regardless if it’s EX, Magna(Omega) or Normal or Bahamut skills or Atma skills. That said, here’s the general things I’ll be looking at for this post, what you’ll see in the next few paragraphs are a gonna be combinations of different things such as:
- HP Up weapon skills (Aegis, Majesty, Bahamut weapon skills, Atma skills)
- HP down weapon skills (Tyranny)
- Unit Passive HP up (in the form of Lelouch)
- Unit Passive HP down (in the form of You)
- Summon Sub Aura HP up (Arcarum Summons)
- Summon Sub Aura HP down (Belial)
During the tests, minimal weapons and summons will be used to show faster results.
Determining Unit Passives Alignments
Now this is gonna center around You and Lelouch as they both have the HP altering passives with You having an HP down (-15%) and Lelouch having an HP up (+15%). By default, of course, these will just modify the base HP (100%) shown by your party.
As you can see in the images above, my grid is only using a dark GW Dagger and Celeste FLB as my main summon which yields You to have 5789 base HP and Lelouch to have 6719 base HP. Upon going to battle, you’ll be able to see your final computed HP and naturally, if you get You’s base HP and multiply it by .85 (only 85% of her base hp due to the -15% passive), you’ll yield to 4920.65, if the computation outputs some excess values, it’s immediately equivalent to 1 hence the 4921 HP; meanwhile Lelouch’s base HP will be multiplied by 1.15 (since it’s 115% of his base HP) which now yields to 7726.85 and when rounded off by GBF, it becomes accurate at 7727.
So now, let’s try to add one Bahamut Weapon (Dagger Coda so I can support both Erune and Human) and see what happens.
At skill level 15, a bahamut weapon grants affected races a +18% HP increase. Now, as with weapon skills’ HP increase, let’s try making it additive first and see how it adds up. By doing it additively, You should now have 103% (100 +18 -15) of her base HP (6057) and Lelouch should have 133% (100 +18 +15) of his base HP (6987); with those said, computing and rounding off their HPs, You should have 6239 HP and Lelouch should have 9293 HP but something seems off, right? While Lelouch’s HP is correct, You’s incredibly wrong. In order to get You’s correct HP, it should be multiplicative so, it’s supposed to be Base HP * .85 * 1.18, if you do that, You’s HP will now result to the correct 6076 HP; with this, it now means that You’s passive is on a multiplicative layer and that Lelouch’s passive, on the other hand, is additive to your weapon skills.
To ensure this is the case, we will now add a 2nd Weapon in the form of an FLB Hermanubis.
Hermanubis is a sk 15 medium Majesty and exactly gives a +14.5% hp increase that’s boostable by Hades but alas we are using Celeste so it shouldn’t be a problem. If we are to reinforce that Lelouch’s passive is additive, then we are simply going to multiply his base HP of 7197 by 1.475 (100 + 15 + 18 + 14.5) and should yield to 10616 and we that is truly the case now that we have a secondary HP increase weapon. And now to reinforce the notion that You’s passive is multiplicative, we will now multiply her base HP of 6267 by 0.85 (due to her passive being a -15%) and then multiply it again by 1.325 (18 + 14.5), we end up with 7059. And this now concludes the unit passive alignments as we now know that You’s passive is multiplicative to that of weapon skills while Lelouch’s passive is additive.
Determining Sub-summon Aura Alignments
For this section, I’ll be shifting to Earth as Dark does not have any HP-up sub auras from summons; given the situation, we’ll now be looking at 0* Belial (he doesn’t need to be FLB as his hp cut is a flat -30% regardless of uncap level) and a ULB Tower (+30%). As with the unit passives alignment, we’ll first start with seeing how each work individually, but unlike in the previous section, I won’t be explaining it anymore, so from the screenshots, just take the base HP indicated there and multiply Belial’s case by .7 while Tower will be by 1.3.
Now that you’ve seen the initials, the first we’ll have to find out is IF Belial’s HP reduction is additive to that of Arcarum’s (and Sandalphon’s) HP increase; that said, if they are indeed additive, then they should break even and just keep your base HP to where it is as Belial gives a -30% while Tower gives a +30.
As you can see with the final HP, it breaks even and Djeeta’s base HP remains untouched, this confirms that Sub-auras are additive to one another, easily making Belial’s demerit cancellable by HP Arcarum summons.
Now that we’ve confirmed Sub-Auras on Sub-Auras, we’ll now proceed to test it with weapon skills. For this case, I’ll only be using Nibelung Klinge to see if the effects are additive or not, since we now know that Tower will cancel out Belial’s effect, I’ll be removing Tower to see if Sub-auras are additive to weapon skills or not. Note that since I’m using Yggdrasil FLB as my main summon, Klinge’s HP up from Truce will be boosted.
At skill level 15, Nibelung Klinge’s HP increase should be +14% at base according to Gamewith, and if we boost it by 120% from Yggdrasil FLB, we should get a total of +30.8% so if we do it additively, we’ll only be multiplying Djeeta’s base HP of 8507 by 1.008 (100 – 30 + 30.8); the resulting HP should be 8576 which fits the HP we got from the screenshot and this implies that sub auras are indeed additive to that of Weapon HP increase skills. To help reinforce this notion, let’s try computing it multiplicatively such that the final hp is 8507 * 0.7 * 1.308 and the resulting HP is actually lower with the value of 7790 which is totally incorrect from the one we got. That said, we can now conclude that Sub Auras are indeed additive to weapon HP increase skills.
Determining Tyranny Skill Alignment
Now that we’ve gotten data from Sub Auras and Unit Passives, we’re going back to Dark with You and Lelouch to determine the final piece of the puzzle which is the Tyranny skill, the 10% HP cut that comes with weapons like Cortana, Qilin Bow, Huanglong Katana and many more. So with that and given what we found out with You and Lelouch’s Passives, we’ll instantly be able to tell how Tyranny works as one is a multiplicative layer and one is the same with HP increase weapon skills.
So first, we’re gonna assume it’s additive to HP increasing weapon skills, so for the You, we’ll be computing it as 5764 * .85 * .9 and for Lelouch, we’ll be computing it as 6694 * 1.05; the results on these should be 4410 for You and 7029 for Lelouch, clearly that’s not the case here so let’s change the formula again.
For Lelouch, we’ll make it multiplicative while for You, we’ll make it additive instead since considering it as a weapon layer earlier already made it multiplicative which we already did in case 1; with the formula’s changed, it’s now gonna be 5764 * .75 for You and 6694 * 1.15 * .9 for Lelouch which results to 4323 and 6929 respectively which now hits the right numbers. With this we can now conclude that Tyranny is on the multiplicative side with HP Weapon skills and Sub Auras but is, in turn, additive with You’s HP reduction.
The Actual Formula
Now that we’ve figured out the workarounds of HP mods outside the HP increase weapon skills, we can lay it out as:
Base HP * [1 + (1 + magna summon modifier) * magna HP modifier from weapon + (1 + primal summon modifier) * primal HP modifier + ex HP modifier + bahamut weapon HP modifier + Ultima/Atma HP modifier + sub aura HP increase modifier + character passive HP modifier – sub aura HP decrease modifier] * [1 – total reductions from Tyranny (up to 70*) – character passive HP modifier]
tl;dr, if not counting character passives, basically everything adds up with weapon HP up skills and summon sub aura effects which will be multiplied from the base HP, afterwards your total cuts from Tyranny skills will be multiplied from the result to get your final HP. Depending on the character, their passives can add to either the weapon layer or the tyranny layer. Basically, as far as HP reductions are concerned, Belial’s cut is totally recoverable if you have Arcarum summons and/or HP weapons in grid BUT for Tyranny weapons, there’s no way to cancel them out as they will always reduce your HP no matter what. And that’s about it for this entry, I know it’s been a while since I posted but hope this was informative.











































