1. What is Bloodsmelting & How to?

2. Items needed
-Main Esper
-Source Esper
-Mediums

3. Esper Types, Quality & Levels
-Faction & Non-Faction
-Precious,Heavenly & Divined

4. Generalized Bloodsmelting

5. Orange Stat
-Use of Orange Stat
-Stat Increasing

6. Specialized Bloodsmelting & Stat Cap
-Stat Sacrificing (Testing Needed)

******************

1. Bloodsmelting

In a nutshell – bloodsmelting is making your esper more powerful by increasing the stats & growths. There’s different types of bloodsmelt such as
generalized & specialized bloodsmelt.

If you haven’t bloodsmelted before, you can bloodsmelt by going to the Esper Mystic in town and selecting "Bloodsmelt". You will need your main esper, source espers and corresponding mediums for your main esper.

Many people say that it’s the quality that matters on esper, in this case having "Divined" esper. Making your esper divined at level 1 doesn’t not give you any more stats than what you would get when you divine it at level 30.
I actually prefer smelting the esper at higher level, since I can see the stats really change if they upgrade or downgrade.

Most of the time people think that after you have your esper at divined state, you will never have to bloodsmelt the esper again. This is wrong, unless you only wanted to have the "Divined" for looks and not for the usefullness of the esper.

2. Items needed

-Main Esper
This is the esper you are using & whiches stats you want
to increase. I do not suggest bloodsmelting Lv. 15 faction
espers, since it does not take so long to get the Lv. 75 esper.

-Source Esper
This esper is used to increase your main espers stats and
growth in bloodsmelt. Using wrong kind of source, by which
I mean bad quality espers to bloodsmelt your main esper,
may result in downgrading of the main espers stats. Stats
getting downgraded means that the quality can also go down.

-Mediums
Mediums are received from Tonni in sunstream for exchange of
Treasure Bowls. You select mediums corresponding to your main
esper.

Transfering orange colour from a Trigram to your main esper will
need a different medium. These are;
Best Ying-Yang Flag (Lv 15 Espers), Best Spirit Light
(Lv 45 Espers) & Best Dragon Skin (Lv ≥75 Espers)

3. Esper Types, Quality & Levels

There are espers with different level requirement. The more higher level requirement the esper has, the more stats will be increased every esper level. Theres Lv. 1/15/45/75/105 & 135 different levels of esper. You can buy faction espers up to Lv. 105 from Esper Mystics. The max level of esper is Lv. 30 before & 35 after ascending.

Theres 3 types of esper qualities: Precious, Heavenly and Divined. This is the part which most people care about. Having a divined state esper most of the time means having better stats at higher level of esper. The quality comes from the amount of stats in the esper. If you lower the stats, the quality will also go down.

When you are bloodsmelting you esper and you finally get from Heavenly to Divined does not mean your esper has max possible amount of growth. The esper is actually at the edge of being heavenly and divined – it has just enough growth to be divined.

What happens if you bloodsmelt a low growth esper to it?
-The stats will decrease and the esper goes back to heavenly or precious.

And what if you keep bloodsmelting it with good growth espers even after your main esper is divined?
-The stats growth increase until the esper will reach its maximium stat cap.

Esper bloodsmelt doesn’t necessarily have to be done at Lv. 1 of the esper. When you bloodsmelt for example your lv 30 precious main esper, you can see the absolute stats increase or decrease, which you usually don’t see when bloodsmelting a Lv. 1 esper. So, you can still divine your Lv. 30 esper and have the same amount stats as a Lv. 30 esper that was divined at Lv. 1. And even if your esper is Lv. 30 & Divined doesn’t mean you can’t get the stats any higher. You can increase all of the stats until your esper reaches the stat cap.

4. Generalized Bloodsmelting

Now lets get to the actual bloodsmelting. Generalized bloodsmelt focuses in all stats & growths when you bloodsmelt. Most people use generalized bloodsmelt to equally increase all of the stats to get to divined state fast.

Generalized bloodsmelt is kind of same thing as making a fake grade 12 pet. You are increasing all of the stats equally to reach better quality faster. Of course I’m not saying it’s bad if you want to have balanced stats. The source espers stats or level do not matter when bloodsmelting but the stats growths do, since you do not actually transfer stats from source to main.

If you start bloodsmelting when your esper is high level, you can easily see when the source esper stops increasing you main espers stats. If you are bloodsmelting for example, a Lv. 105 precious esper, you can start by using Lv. 15 faction espers (unless they decrease the stats). When those sources stop increasing your stats, move on to espers with higher growth, like Lv 75 divined ones. If you bloodsmelt without orange stat using higher level and higher quality espers, your main espers stats & quality will go up.

Here is my main esper:

And here is the source esper I used:

I place them in their right slots:

And stats after bloodsmelting:

You can see that the min attack only went up by 1 but the bloodsmelt actually affected all of the espers stat growths slightly up or down.

5.Orange Stats

What is the actual use of orange stat?
Why does only Trigrams have orange stats when you buy espers from NPC?

Let me clear up one thing first: Orange stat does not increase stat growth when leveling you esper. Making your espers attack as orange at Lv 1 does not affect how much attack your esper will have at Lv. 30. Understood? Good.

Orange stat is mostly used in specialized bloodsmelt. You can get trigrams with different orange stats when you buy them from NPC. You can then transfer the wanted orange stat (Note: You don’t transfer any stats, you only transfer the orange colour!) to your main esper using the transfering mediums.
Orange stat is used in increasing or decreasing your espers specific stat when bloodsmelting. If your esper has for example – low stun RES at Lv. 20, you can increase it by making it orange first and then bloodsmelting source esper with similiar or higher stun growth to it. After that you can check how much the stun resist increased.

Lv. 1 espers doesn’t really show any changes after bloodsmelting. That is why I suggest orange stat smelting after the esper is lv 10+ because you can see clearer results. Stats with higher value are more difficult to increase.

If the orange stat is in the source esper, it has no effect when bloodsmelting it to your main esper using normal mediums. Trigrams with orange stat doesn’t mean that the trigram has high growth in that stat, this is why I asked the question "Why only trigrams have orange stats when bought from NPC?". A Trigram cannot really have higher growth than lv 75 or 105+ espers, so their only purpose is to transfer the orange stat to your main esper.

First I’m transfering Orange Sleep RES from trigram to my main:

Orange sleep after transfer:

Here is the source esper I used:

And stats after bloodsmelting:

The bloodsmelt only affected the sleep resist, which increased by 1. I said earlier that the sources stats do not matter, only the growths do, so I didn’t use esper with high sleep RES already because it wouldn’t have mattered anyway.

7. Specialized Bloodsmelting

Other guides explain specialized bloodsmelt as using trigrams with wanted orange stat and then bloodsmelting them into your main to increase the mains specific stats growth. In my guide, this is actually the other way around.

I still have to test if stat increasing and decreasing has to be done everytime the esper gets a level up. I heard there was problems decreasing stats to their original values when the esper was leveld, so it might be possible that for example, when the esper is level 3 you can only decrease a stat to the value it was when the esper was lv 2 instead of the original value at lv 1.

In specialized bloodsmelting you only increase the "useful" stats of the esper and sacrifice the "useless" stats.

If you orange stat an useless stat, then start bloodsmelting low growthed espers in your main esper, the orange stat will eventually start going down. And of course when you lower the stat, the quality will also lower. You can then use those points you removed from the useless stat to raise some more useful stat.

This kind of system makes it possible to actually specialize your esper to have more higher useful stats while sacrificing those unneeded stats. The decrease of useless stat will not probably go lower than what the esper had originally.

Here is a picture of specialized chinese espers:

Esper on the left is Death Wand and on the right is Sinister Orb.

Pretty sure that these espers growths for weaken aren’t that low and the other stats growth isn’t that high.

Let’s take for example the Death Wand on the left. There is 2x +8 stats and oddly 3 exactly same valued resistances.
I’d say, the person decreased weaken and sleep to the original values he had at Lv. 1 and used those points to increase HP, SP and the other resists to 200+.

I think espers have somekind of stat cap. When your esper is max level (30,35), it has limited amount of stats that you can "distribute".
By distributing, I mean decreasing and increasing stats, until you cannot get any stat higher.

Credits go to Nejibana.