After breaking through several layers of Dan Pagoda in a row, Ning Yi once again encountered the refining of the Poison Pill.

After trying all the herb toxins he didn't know one by one, Ning Yi began to refine them.

Maybe I have tried more herbs by myself, and I prefer to perceive herbs more sensitively, and sometimes I can probably understand their medicinal properties when I touch them. But in order to be able to refine the elixir accurately, Ning Yi still tried each herb.

In this way, after Ning Yi broke through to the 801st floor, the difficulty increased again!

Not only is the difficulty of the level of the pill increasing, but the herbs used are also becoming more and more rare and precious!

Ning Yi guessed that this might be a simplified version of the immortal-level elixir, if so, then after the 900th floor, it might be a simplified version of the god-level elixir.

Thinking like this, Ning Yi couldn't help but take a deep breath.

After tidying up the state, Ning Yi began to concentrate on tasting the herbs, recording the medicinal properties of each herb, and then deducing the pill prescription according to the medicinal properties.

There has always been no absoluteness in the Dan formula, as long as the correct pill can be refined, it is the correct Dan prescription.

This is Ning Yi's firm belief after learning to create Danfang.

A simplified version of the immortal-grade elixir, he would rather not be careless.

After deducing a few Dan recipes, Ning Yi felt that it didn't seem right. The temptation was refined once, and sure enough, the effect of the pill provided by Ta Ling was very different.

The effect of the pill is completely different, and Ning Yi did not deduce it any further.

After sitting in place and meditating for several days, Ning Yi had a deeper and deeper conjecture.

Graft herbs!

The medicinal effect of grafted herbs is more stable than its original medicinal effect, and the medicinal properties are more complex.

Right or wrong, that's the only way to try!

Having made up his mind, Ning Yi began to reformulate the Dan prescription and then make grafting herbs.

This time, I only tried it once based on my feelings, and Ning Yi succeeded in refining!

After the successful refining of the 801st floor, Ta Ling's voice seemed to be slightly gentler.

"Congratulations to student Ning Zhan for refining a simplified version of the immortal-level elixir, if you break through the 901st floor, after you get out of the tower, the rewards will be stacked!"

？？？

Is there a reward for getting out of the tower?

How did she not know before?

Thinking that everyone would have it, Ning Yi didn't pay much attention to what Taling said, but this reward was superimposed, which made her very excited.

The origin of this Dan Tower is mysterious, but just the tower spirit can have so many precious and rare herbs, and the presumably the preciousness of the stacked rewards is definitely not low.

Thinking of this, the fatigue of Ning Yi's long journey into the Dan Tower seemed to dissipate somewhat.

Stepping into the 802nd floor, it is the same as the 801st floor, both of which are simplified versions of the immortal-level elixir, and they are preferred to use grafted herbs to refine, and after correctly deducing the Dan Fang, they will transmit the sound to Ta Ling.

In this way, the level is broken layer by layer, until after the 850th floor, the difficulty increases by another gradient.

The 850-layer pill is a simplified version of the immortal-level poison pill, which is extremely toxic, and almost as long as a drop, it can turn a person into blood in an instant.

Fortunately, Ning Yi is a herbaceous physique, and although the medicinal properties of that poison will not make her turn into blood, it will also make her meridians, flesh and blood, as well as her internal organs, suffer strong burning pain.

The pain he endured was countless times higher than that of the previous heaven-grade elixir.

Ning Yi tasted this herb, but he couldn't help but snort, and the skin on his body was faintly red, almost oozing blood.

However, Ning Yi didn't care too much, and after this unbearable pain passed, he tasted another poisonous herb.

In this way, after slowly tasting all kinds of poisonous herbs one by one, Ning Yi also became a bloody person.