Just do it, the little fat man took out all kinds of materials from the storage ring, the furnace and the anvil and hammer, and asked Tian Tian to help pick the materials while preparing, which requires materials with strong toughness, Tian Tian just selected those materials that are not valuable, but have relatively high toughness.

"Changsheng, your understanding of materials must be stronger than mine, I think as long as you use black iron and add a little star copper, after all, it is just a one-time magic weapon, and as long as you can store mana, it usually has no power if it is not triggered, plus the purpose of star copper is only to depict the needs of the space magic circle, the cost of such a magic weapon is not high, how about upgrading when you need to store more mana when you need to store more mana in the future?" Tian Tian asked.

"You're right, if such a costly magic weapon can blow up the Jindan monk, I'm afraid it will shock the cultivation realm, I think you can wrap a layer of black iron with very low purity on the outside, so that even if you throw it there, no one will want it, I will add a layer of trigger prohibition inside, as long as it is disassembled, it will explode, and no one will know how we did it." The little fat man added some arrangements to Tian Tian's thoughts.

The little fat man began to smelt metal, black iron and star copper are the lowest level materials, except that star copper has some spatial attributes, but star copper is too common, and the strength is not high, and generally more advanced materials are used to make space magic weapons, and it is very easy to smelt. After that, I began to build the shell, and the shell will naturally leave a lot of scraps, and the little fat man threw it aside, these materials are too valuable, and the little fat man is just in the storage ring because he has nothing to do with these materials.

Tian Tian looked at the scraps that were thrown away thoughtfully, "Changsheng, don't throw the scraps, let's make these scraps into small beads, don't need too regular shapes, it doesn't take much time, only add strong and sharp runes to the beads, so that when it explodes, it is equivalent to flying out countless small magic weapons at once, as long as you can break through the defense of the body, these small beads hit the body, and you have to shed your skin if you don't die." Tian Tian suddenly thought of the grenade in that memory, "I'll inject you with some more wind mana, so that Xiaozhu's flight speed can be accelerated a lot after the explosion." ”

"I really don't know how powerful this thing can be, I can make a few in an hour, and it will take some time to infuse mana, but I can have a dozen of them in a day. The little fat man said as he began to carve the circle.

The two of them worked hard for a day, looking at the five finished products in their hands, full of joy, after all, this is something that two people made completely by imagination, the next is to find a suitable experiment, there are monsters in the forest, you need to find a relatively high level, but the speed can not be too fast, so that if it is not successful, the two people can escape smoothly.

So the two of them began to walk deeper again, and they met some demon beasts on the way, and the two were not in the mood to fight, and it was a set of big moves to go up, and these demon beasts were killed before they understood what was going on, and the two of them just collected some useful materials and compared essence of meat and continued to move forward.

Three days later, in front of a small waterfall, the two of them saw their favorite target, this is an iron-armored blue lizard, this demon beast is a demon beast in the Dan stage, it is better to defend with high strength, and the most important thing is that it has no long-range skills except for spraying a little venom, and the speed is relatively slow.

"Brother Tian, what do you do, come up with ideas. The little fat man was eager to try.

"What else can you do, just throw it out and run, just hide in the distance and see the power. Tian Tian said.

The little fat man looked at Tian Tian, and then looked at the iron ball that had been blackened, and as soon as he gritted his teeth and raised his hand, he threw it at the ironclad blue lizard, and the two of them turned around and ran, if a demon beast in the Dan period was provoked, the two of them wanted to kill it, and it was estimated that they would have to play all their hole cards, and if they didn't get hurt, it would not be worth it.

The ironclad blue lizard was lazily lying on a big stone basking in the sun, and suddenly saw a large black thing flying towards him, and there was no mana fluctuation, and he was still wondering what this thing was, just looking at the round iron ball smashed on the stone under him, he just wanted to see who was so blind to provoke it, only to hear a "~~~~~~boom", and there was no then.

Tian Tian and the little fat man were running forward hard, only to feel a strong surge behind them, and the body was uncontrollably lifted out, and the two of them used mana to protect their whole body when they started running, and the little fat man even sent a defensive shield behind the two, but only in an instant, all the defenses were destroyed, and the two of them flew out of a distance of more than ten zhang before they were thrown to the ground, and a mouthful of blood spurted out.

Looking back, where was there any shadow of the ironclad blue lizard, everything within a radius of ten zhang was blown into powder, and what was originally a good hill and waterfall was all gone, leaving only a deep pit, and the surrounding area was pitch black.

"Damn, how much material did you fat man put in it," Tian Tian gasped, he felt that all his internal organs were displaced, and his breath hurt all over his body.

"Brother Tian, I didn't know that it had such a great power, where is this thing you designed is a foundation building period magic weapon, I think don't have enough power, there are two hundred fire magic weapons in each, plus fifty wind magic weapons, these days I am tired like a dead dog, I am just infusing mana." The little fat man's face was distorted when he spoke.

"It's really ruthless, the power of this thing is about to catch up with the old monster, who told me that I can't kill Brother Jindan, and who is in a hurry." Tian Tian said with a grin.

"I still have some healing pills here, let's take it quickly. The little fat man took out a small medicine bottle from the ring, struggled with one himself, and threw it to Tian Tian, "It's a pity that my magic shield, a serious Hong-level magic weapon, look at it, it's almost useless." The little fat man looked at the shield in his hand that had become a pothole.

"Show me. Tian Tian stretched out his hand to take the shield, only to see that it was not only pitch black, but also inlaid with small beads of various shapes, although they were all deformed, they could still be deeply embedded in the shield, "Thanks to this shield, if there was no him, we would have turned into a sieve." ”

"The experiment is successful, there are four more, two of us will keep it for self-defense, Brother Tian, you can name this thing. The little fat man handed the two iron balls to Tian Tian and said.

"Let's call it a grenade, I guess no one understands it, hehe. Tian Tian didn't even think about taking the iron ball and said.