This is undoubtedly a shot in the arm for the current Lin Han, the Altar of the Underworld has always been an important source of his troops, but unfortunately the combat power of the Dark Pterodactyl at this stage cannot be regarded as top-notch, and the Dark Dragon Knight is also too difficult to be born, so there is no way to mass produce it.

Now what he is looking at is the higher level of the military - the Holy Maiden of the Underworld, it seems that it should be the ultimate form of the French military class, after all, it is a 12th-order class, how strong the Holy Maiden of the Underworld is, Lin Han is not clear now.

But it can be inferred from the huge phantom that I saw when I was at the altar of the underworld, this law class is definitely an extremely terrifying creature, of course, the stronger the creature, the lower the output, generally speaking, more than 10 troops, almost all of them are boss-level existences, and there are few ways to produce them in batches.

So now if Lin Han can get an underworld saintess, it will be very beneficial for his next development, the later he goes, the more important the law class is more and more obvious, there is a group of high-level law units, it can be said that there is a group of self-propelled mobile batteries.

Just look at the Styx Ringing Spirit * Vilie, as long as there are enough of them, the output of these guys is simply outrageous, and this is only the 9th order of the legal class, so if you calculate it, the 12th order of the underworld, its output ability is likely to be as high as breaking through the sky.

"Yes, yes, but it's going to be troublesome."

Orianna took a deep breath and said, when she said this, Lin Han's whole body became excited, yes! As long as this is enough, as for any trouble, it is nothing to him.

"The Altar of the Underworld upgrade requires a large number of corpses of the 10th rank troops, and multiple sacrifices are required, and the 10th level of the Underworld Sacrifice has a chance to get the Underworld Holy Stone, which is the only way to upgrade the altar and summon the Holy Maiden of the Underworld."

When Oriana's words came out, Lin Han's heart already had a bottom, Orianna was really right when he said that it was very troublesome, this kind of sacrifice has a chance to get something, and then it is still a necessity for building upgrades, if you want to collect it, the difficulty coefficient is definitely not ordinarily high.

"How many Underworld Sacred Stones do you need to level up, and how many Sacred Stones do you need to summon a Holy Maiden?"

Now that he knows the way, the only thing Lin Han needs to do now is to make statistics, and then start to think about how to loot the corpses of the 10th-order troops as much as possible, at present, the only way is to clean up the creatures in the forest and the sea, and then collect the corpses to sacrifice, but in this way, there is another problem, how many holy stones do you need to upgrade? And how much does it take to summon?

"Upgrading the altar requires 100 Underworld Sacred Stones, if you summon the Holy Maiden"

Speaking of this, Oriana hesitated for a moment, and then said a number that made Lin Han stunned.

"What?! 2000 pieces?! ”

Lin Han, who heard this number, was already close to petrification, good guy, 2,000 Underworld Sacred Stones, this is not a joke, this may have to be sacrificed many times to obtain, and thinking of this, he asked an extremely crucial question.

"How do you sacrifice to get the Holy Stone? How much can I get at one time? ”

This question is very important to Lin Han, how many corpses can be sacrificed to get the holy stone, this point is very important, if it is said that more than 1,000 corpses must be sacrificed at a time to get 1 or 2 holy stones, Lin Han considered whether he should give up this idea first.

"If you sacrifice, you can get the Underworld Holy Stone with more than 100 units of 10 units at a time, the more you sacrifice the corpse, the more Underworld Sacred Stone you get, and in addition, if you sacrifice the corpse of a creature like a leader or lord, you will get more Holy Stones, but I don't know exactly how many."

Oriana's answer made Lin Han breathe a sigh of relief, so it seems that as long as it is 100 units of corpses, there will be stones, if this is the case, it seems that the difficulty of upgrading is not very great, and the corpse of that leader and lord will get more holy stones also made Lin Han start to think carefully.

He's not a rigid person either, and since boss-level creatures can get more holy stones, that means that as long as you sacrifice the corpses of boss-level creatures a few more times, it's a lot easier? For example, the elven ranger he saw earlier.

After chatting with Oriana about the upgrade conditions and benefits of the Altar of the Underworld, Lin Han finally made up his mind to clean up! Be sure to clear the whole forest! This is related to his next rapid development, which is not a joke.

After the Altar of the Underworld is upgraded, it will become the Altar of the Underworld, which is the final form of the Altar of the Underworld, unless Lin Han can kill the 2 Altar of the Underworld and snatch their godheads, and then the Altar of the Underworld can be upgraded to the Eternal Altar, otherwise don't think too much.

Hades, Lin Han won't think about it, just kidding, it's estimated that it's all the existence of Lv100, isn't it the same as playing to pinch Lin Han to death in minutes?

But the Eternal Altar can't help it, but the Altar of the Immortal God can! After the upgrade of the Altar of the Underworld, the production of all classes will be greatly increased, and, according to Orianna's memory, after the successful construction of this altar, it seems that the Underworld class will receive a more significant enhancement, which is acceptable even to his modified class.

In addition, the Altar of the Underworld will also open up several new functions, and the sacrifices will also be differentiated, which will become divine sacrifices, life sacrifices, and unknown sacrifices, which can be in the form of class corpses, powerful treasures, or underworld sacred stones.

These sacrifices correspond to troops, treasures, and special units, and Lin Han will be able to collect sacrifices for a certain type of sacrifice at that time, which seems to be much better than the current random selection.

But there is a premise for all this, that is, Lin Han has to get enough holy stones, and Oriana also gave Lin Han a more useful news, that is, the upgrade of the altar of the underworld also requires dragon blood crystals.

This is more troublesome, Lin Han does not have many dragon blood crystals in his hands now, if he can't go to a few fixed collection points, it is estimated that it will be very troublesome next, high-level buildings need dragon blood crystals to upgrade, which is an extremely important resource in the later stage.

Fortunately, Lin Han still has enough time to collect it, and the dragon blood crystal must have a mining point in the Heavenly Realm City, and he also has a hunch that there must be one in this forest, but he has not found it yet.

"After stabilizing this area, Oriana, you and Ania will work with me to sweep this forest!"

At this time, Lin Han was also ruthless, sweeping the forest where the 10th-order creatures were all over the place, and now he was the only one who dared to say such a thing, but Oriana's expression became excited, because she already knew the strong desire of the lord to upgrade the altar of the underworld.

As a hero from the underworld, Oriana's power actually has a lot to do with the altar of the underworld, and Lin Han doesn't know one thing yet, that is, the moment the altar of the underworld is upgraded, it is also the time when Oriana's power is greatly strengthened. (To be continued.) )