Hi, during the last few days I saw a lot of people asking about the math and methods to farm imp dungeons using a Mifune. I love theorycrafting and numbers so I have done the math and I'm willing to share it.

Introduction

Our goal is maximizing the number of imps you get from a single key. We will do it by doing as many runs as possible as fast as possible. We can take advantage of 1/2 energy on Vortex to make more runs. All the math in this guide is done for 1/2 energy Vortex.

How many runs can I do?

As much as you can in one hour, from what I have seen on reddit, the max is around 50 runs.

However, the maximum amount of runs you will do is determined by your max energy. Assuming you won't be gemming for energy

The amount of runs in an hour is determined by this formula

(MaxEnergy 10)/8) -> rounded down -> x 2

For example at 177 energy: (177 10)/8 = 24.625 rounded down to 24, 24x2 = 48 runs.

For example at 113 energy: (113 10)/8 = 15.375 rounded down to 15, 15x2 = 30 runs.

That will be your max number. You can get one more run at the end if you leave the dungeon open and wait for energy to fill.

The imp key lasts one hour, so we want to lvl up half an hour after we start to get more energy. In order to do this, we will prepare our experience to level up when we have done half of the runs. Each run will give us 1000 exp.

You have to set your exp to next level to level up with half the runs.

If you are going to do 48 runs, your exp to next level has to be between 24000 and 23000 so you level up when you end your run number 24

If you are going to do 30 runs, your exp to next level has to be between 15000 and 14000 so you level up when you end your run number 15

In order to adjust the exp to next level, use normal quests (remember some maps have 2x exp sometimes)

Team setup and items

Obviously, you need a Mifune SBB10. It doesn't have to be breaker, but we all got one free recently and breaker will help us meeting the ATK requirements.

Your team leader has to be Kikuri 7* or Elza 6*. The typing does not matter .

You will need 1 Fujin Potion per run (bring tonics just in case, but dont use them unless you have to)

We can choose any friend leader. We will only use them to kill burst frogs. I prefer to avoid Quaid because of this.

Step by step run

• Fujin Mifune. Auto with leader. SBB Mifune -> This will kill everything and fill Mifune SBB
• Auto with leader. SBB Mifune -> This will kill everything and fill Mifune SBB
• SBB Mifune -> This will kill everything

If you get a burst frog, auto with your friend leader to kill it.

If you dont have Mifune SBB avaliable somehow, use a Fujin

Repeat

Mifune

Mifune needs to be imped in order to be able to oneshot the god in each stage of the parade.

The amount of imps it will need depends on:

• Spheres
• Type
• Leader Skill

Math :

33333 < ATK * (1 BB/SBB/UBB modification LS Sphere1 Sphere2)

For Mifune's SBB modificator is 800% so

33333 < ATK * (1 8 LS Sphere1 Sphere2) <- This is the mother of all formulas

• For Elza LS ATK increase is 0

  33333 < ATK * (1 8 0 Sphere1 Sphere2)

  33333 < ATK * (9 Sphere1 Sphere2)

• For Kikuri 7* LS ATK increase is 100%

  33333 < ATK * (1 8 1 Sphere1 Sphere2)

  33333 < ATK * (10 Sphere1 Sphere2)

Most used spheres are:

• Blighted Seal ( 100% ATK) Demon Core

  • For Elza

    33333 < ATK * (9 1 0)

    ATK > 3333.3

  • For Kikuri 7*

    33333 < ATK * (10 1 0)

    ATK > 3030.3

• Blighted Seal ( 100% ATK) Heresy Orb ( 15% ATK)

  • For Elza

    33333 < ATK * (9 1 0.15)

    ATK > 3284

  • For Kikuri 7*

    33333 < ATK * (10 1 0.15)

    ATK >2989.5

• Urias ( 30% ATK) Heresy Orb ( 15% ATK)

  • For Elza

    33333 < ATK * (9 0.30 0.15)

    ATK > 3527.3

  • For Kikuri 7*

    33333 < ATK * (10 0.30 0.15)

    ATK > 3189.8

When you get your ATK required according to your leader and spheres, you only need to imp your beloved Mifune until he has this ATK (remember to unequip spheres to check it)

For example: I use Kikuri 7*, Blighted Seal ( 100%) and Ihsir's Guise ( 5%)

33333 < ATK * (1 8 1 1 0.05)

ATK > 3016 This is my Mifune, imped just over 3016

Leader

The main objective of our leader is providing his leader skill (50% BB gauge fill rate) and helping us filling Mifune SBB

Our leader has to bring:

• Lexida/Hallowed Skull
• Virtue Stone

Tips & Tricks

1. Carry more Fujin than runs you are going to do just in case you use more than one per run
2. Test if your sphere setup fills Mifune SBB with Leader auto Mifune SBB. You can do this in any quest with 5 enemies
3. Each run will give you 3 units, leave enough empty space for all the runs. This way you dont lose time fusing. This is especially important if you try to do 35 runs.
4. You can farm Fujins here Agni Region - Agni - Ocean Shrine Albina - Trespasser into the Mind

TL:DR

Oh boy

1. Calculate how much ATK your Mifune needs, imp it accordingly
2. Calculate how many runs you can do based on your max energy. Adjust your experience accordingly
3. Empty your unit inventory, farm enough Fujins
4. Check if the units have the spheres equiped
5. Free an hour of your time. Get good Wi-Fi and shit
6. Spam
7. Profit

Author's note:

This is my first guide and english is not my mother tongue. I have checked spelling and grammar but probably the style is awful. Constructive criticism is appreciated.

If you have doubts feel free to comment. I will try to answer ASAP and edit the guide to make it better.

If you see any mistake PLEASE tell me, I don't want to give false info.