Whether it is the Beacon Fire Era or the Qi Cultivation Era, the vast majority, or even basically all the Outer Dan Techniques, are actually the same.

That is, to refine an outer pill with part of the inner pill effect, and then use the power inside the outer pill when wearing it.

However, Tianlan Sect felt that such a method was a little stupid, and even if it was a refined outer pill, at most, it would be stronger in terms of energy intensity.

For example, some top-grade outer pills, if there are enough grooves on them, enough runes are engraved, and the materials used are strong enough, then it is even possible to reach the level of the early Yuan Infant.

But even such a powerful and top-grade Wai Dan still has some flaws to a greater or lesser extent.

For example, if you really have an inner dan, not only will there be quite a lot of true elements in your body, and you can use these true elements to cast spells, but more importantly, you can also improve your basic physical fitness, shield some not very serious mental damage, etc., all of which are the real effects of the inner dan.

Moreover, a real Jindan, even if it has just reached the level of the early stage of Jindan, is far from being comparable to Waidan.

Let's talk about the most basic thing, unless you have a very special physique, such as a physique like a peerless body.

Otherwise, if it is an ordinary level, even if it is the lowest-grade low-grade spirit root, with the golden pill, it can easily cast the Five Elements Spell, and the biggest thing is that he is a fire spirit root, and when he casts a water system spell, the power will be several small realms weaker.

But Wai Dan can't do this, the best Wai Dan engraved with the 4 attribute runes of Jinmu Fire and Earth, these 4 attribute spells may have reached the level of the Yuan Infant Stage.

But let alone casting the water spell of the Yuan Infancy, even if you want to summon a water ball, you can't do it, because there is no water rune on it.

This is the limitation of Waidan, the attributes it can have, and the attributes that Waidan itself has, as well as the runes engraved on it in the later period, have a great relationship, that is to say, in terms of freedom and omnipotence, I don't know how many grades are missing.

If it's the inheritor of the general Wai Dan technique, then you definitely don't have the mood to care about this, just like someone often likes to say, I eat instant noodles, is it possible that I still care about health or not?

And the same is true of the Outer Dan Technique, I have no talent, I can't practice the Inner Dan Technique, and I can't form the Golden Pill, so I started to practice the Outer Dan Technique, so do I still care which functions of the Outer Dan Technique are not as good as the Inner Dan? It's good to have a wai dan to use!

But for the Tianlan Sect, the Tianlan Sect is a very powerful hidden world sect, not to mention the level of the top bosses of their sect, even the new disciples they have accepted, their talents are exaggerated and outrageous.

It's definitely not possible to get a pill in three days, a seven-day yuan baby, and a twelve-day ascension, but at least it has reached the level of a three-year knot dan, a ten-year yuan-baby, and a thirty-year yuanshen, which sounds a little slow, but in fact, in addition to the player, in the general NPC, this is already very fast.

Therefore, their requirements for the Outer Dan Technique must be perfect, and under the joint pondering of quite a few boring Tianlan Sect bosses, they have developed a set of Outer Dan techniques that are completely different from the existing Outer Dan schools, and they call this Wai Dan and Nei Dan.

Just by listening to the name, you should be able to guess more or less, that's right, the Outer Pill they refined has no grooves on it, and it can't engrave any spells.

However, it has a very powerful effect, that is, it can be directly refined into one's own body by integrating it into the swallowing method, forming a real inner pill.

What's even more terrifying is that the Wai Dan refined by this Wai Dan Technique actually has coverage.

For example, for example, a certain junior disciple in the Tianlan Sect has just entered the sect, and he is practicing a special technique that is rare to see in 10,000 years, and this technique is invincible in the world in the later stage, but not only is it weak in the early stage, but the speed of cultivation is very slow.

Therefore, in order to have a certain degree of safety for himself, he can use this special Outer Dan technique to refine a powerful Outer Pill and integrate it into his body, so that he will have the combat power of the top-level Golden Pill stage when he is in the Qi training period and the foundation building period.

And when he broke through the foundation building stage and reached the Jindan stage, he could use the Jindan he had condensed to smash the one in his body and refine it into the outer pill of the inner pill by fusing it.

And by integrating part of the power inside into your own inner pill, you can also improve the quality of your inner pill a little more, and there is no aftermath, which can be regarded as the most perfect outer pill technique.

It's a pity that there are still two problems, the first is that most of this method, the quality of the Wai Dan refined is very low, and there is considerable uncertainty.

This uncertainty is extremely exaggerated, and it is even possible to throw in a large number of wood attribute materials, and as a result, a fire pill was refined.

And the second is the fit, under normal circumstances, for example, Zhou Ran has an innate thunder spirit body, if it is an earth attribute Wai Dan that is completely restrained with the thunder attribute, then he probably has no way to use it.

But if it's other attributes, such as wind and fire, or metallic properties that are a little bit less compatible with the thunder attribute, he can also use them, at most, the power is slightly reduced.

But the Outer Pill of the Tianlan Sect is different, not only must it be of the same attribute, but also the fluctuations of the spiritual power in its own body, the ripples of the spiritual power, all of which must be at least 95% compatible with this Outer Pill.

If it is a little lower and tries to fuse, the best result is that the spiritual power inside fills the whole body, so that you can only use this outer pill in the future, and you can't practice other exercises, and if it is a little more serious, it will be a spiritual power explosion.

The old man patted his knees, shook his head helplessly, and said, "A few years ago, I found a part of the fragments of the outer Danshu of the Tianlan Sect in a ruin, but it only recorded the content of the first half, that is, the collection of materials and the basic refining techniques.

I've always thought of this thing as a joke, thinking that maybe someone with a bad brain wrote it to fool other people.

But some time ago, I successfully refined a Wai Dan, and when I turned my head to look at this refining method, I found that it was all the simple truth of great wisdom and foolishness. ”

"Didn't I basically finish all the other things? It happened that I was idle and bored during this time, so I planned to try it and see if I could really refine such a Waidan, but I didn't expect that there was a little problem in the process of refining. ”