It is true that biogas can be produced on the swamp, but it is far from the level of explosion, and the reason why Ye Tian's strategy is successful now is not a fluke, but an accident with inevitability.

Originally, the air above the swamp flowed, and the concentration of the biogas could hardly reach the tipping point, but a large number of giant slimes came out of the mire and released a large amount of biogas under the mire, and the concentration reached the tipping point.

In the violent roar, the entire swamp was ablaze, and the entire Ori Mountains were violently shaken, and from time to time unstable stones tumbled down from the top of the mountain, making an earth-shattering roar.

With the explosion, the surrounding oxygen was quickly evacuated, and under the impact of the strong air wave, Ye Tian almost passed out on the spot, but fortunately, Ye Tian was prepared, held his breath, and forcibly endured.

The so-called explosion, unlike combustion, is short-lived, and a large amount of energy explodes in an instant, so ...... The entire explosion was completed with a single bang, and only the flames in the sky continued to rise, forming a giant mushroom cloud over the swamp.

Such a powerful explosion completely drained the oxygen in the surrounding air, Ye Tian held his breath for more than three minutes, until he couldn't hold it anymore, and when he opened his mouth to breathe, the surrounding oxygen was still extremely thin.

He took a few breaths of pain, but he didn't get any relief, and for a while, Ye Tian's face was red and blue, and boundless fear quickly rose to Ye Tian's mind.

Ye Tian knew that although the explosion occurred 30 meters below, it completely drained the oxygen in the surrounding air, and if the state of hypoxia continued to be maintained, he was likely to die due to lack of oxygen.

Fortunately, the heavens didn't seem to intend to let Ye Tian die, with the rise of the mushroom cloud, the surrounding air was frantically pulled, forming a sharp wind, and the shuttling air flow, with the air in the distance, quickly replenished.

Breathing heavily, he finally ...... Ye Tian gradually recovered, pressing his chest tightly, it was the first time in his life that Ye Tian was so close to death, just now, he once thought that he would be suffocated to death.

He poked his head out and looked at the swamp below, and saw that after the violent explosion, the giant slimes that had originally covered the entire swamp, with a total number of fifty or sixty thousand, could not be found at this moment, and the entire swamp was blown into a muddy pool, and blue flames were still rising in some places.

"It's a success!" Seeing this scene, Ye Tian clenched his fists excitedly for the rest of his life.

"Hiss ......" was watching, and in a series of whistling sounds, countless emerald green rays of light lit up one after another, and with the whistling sound, the emerald green earth elements condensed together one after another, condensing into third-order magic crystals.

Fifty or sixty thousand giant slimes have produced a total of twenty or thirty third-order magic crystals, although in terms of proportion, they are not comparable to Ye Tian's skeleton warriors, but they can obtain so many magic crystals at once, which is enough to make Ye Tian ecstatic.

"When!" Looking at the third-order magic crystals scattered messily on the swamp, just when Ye Tian was happy and didn't know how to express it, in a clear sound, in the swamp not far from the side of the mountain, an emerald green dazzling, bright magic crystal like a green sun instantly condensed.

Even if it was separated by a distance of more than thirty meters, Ye Tian could still clearly see the true face of the magic crystal, it was an emerald green magic crystal with a turquoise body, an oval shape, and the size of an egg, no...... According to Orisis's memory, to be exact, this should be called the Demon Core!

The magic crystal magic core is actually the same thing, and it can be soaked in spirits to increase the concentration of elements in the surrounding space, and it can also be directly used to hatch into phantom beasts! The difference is that only the condensed king-level demonic beasts are called magic cores, and the condensed ones of ordinary demonic beasts are called magic crystals.

Looking at the egg-sized magic core, Ye Tian gasped violently, the king of the beast is extremely rare, and the probability of the beast king condensing the magic core is the same as that of ordinary demon beasts condensing the magic crystal, less than one in a thousand, on average, a thousand beast kings only produce a magic core, the question is where to find 1,000 beast kings to kill?

Of course, not only the Beastmaster's magic core can hatch into a phantom beast, in fact, the most ordinary magic crystals can also hatch a phantom beast, but ...... The phantom beasts hatched by the magic crystal can only hatch ordinary phantom beasts, but the phantom beasts hatched by the magic core must be king-level phantom beasts!

Between king-level phantom beasts and ordinary phantom beasts, the ability is almost the same, taking slimes as an example, both are good at body collision, and both are good at spraying acid venom, but in terms of power, they are by no means the same.

Taking Collision as an example, ordinary slimes are good at collision, while the Slime King is good at an enhanced version of collision - due to the speed impact, both the power and speed of the collision are multiplied.

Another example is the acid spray that ordinary slimes are good at, and the slime king is good at strong acid spraying, whether it is the speed and power of the spray, or the corrosive power of the acid, it is also multiplied.

In addition to the difference in power, the wisdom of the two is also very different, ordinary slimes basically have no wisdom at all, but King Slime can already command tens of thousands of troops to deal with the enemy, this is the difference in wisdom.

Finally, and the most important difference, as mentioned earlier, as king-level monsters, they all have their own unique abilities, which is their strongest weapon to become the king of beasts, as for what it is, it depends on luck, the special abilities that the king of beasts may master are tens of thousands.

Originally, through the battle, it should be possible to observe the special ability of the Beastmaster, but this Slime King was more unlucky, and before he could make a move, he was blown to pieces by the biogas explosion, so so far, Ye Tian didn't know what the Slime King's special ability was.

Looking at the emerald green egg-shaped magic core not far away, if possible, Ye Tian wanted to rush down immediately and snatch back the precious and valuable magic core, but unfortunately, Ye Tian couldn't move at all because his body had been deprived of oxygen for too long.

In a hurry, Ye Tian's eyes suddenly lit up, and he weakly stretched out his right hand, and the gray gas was swirling, and the three green, three yellow, and six light clusters roared out of Ye Tian's right palm, and fell straight into the swamp that was still burning. Although Ye Tian himself couldn't move, his skeleton warriors were still intact, and the most important thing was that the skeleton warriors didn't need to breathe, even if the oxygen below had been burned out, it wouldn't affect their survival.

As soon as the six skeletons appeared, Ye Tian quickly gave an order, nothing else is in a hurry, but the demon core must be grabbed as soon as possible, although this is only a weak, first-order demonic beast beast beast beast, but as long as the special ability is strong enough, it is still priceless.

Just as he was secretly looking forward to it, a strange scene appeared, although Ye Tian had already given orders three times in a row, but the six skeletons stood in place in a daze, without the slightest intention of acting.

Stunned, he looked at the six skeletons, and around their bodies, a faint gray-black aura was converging from light to thick, which ...... This is!

Seeing this scene, Ye Tian was stunned for a moment, and then suddenly remembered something, could this be death! Oh my God...... The explosion just now can kill at least 60,000 third-order giant slimes, how much dead air does this have!

Under Ye Tian's gaze, the dead qi around the bodies of the six skeleton warriors became denser and denser, and after only a while, six whistling and gray-black small tornadoes formed by the condensation of the dead qi were formed, rotating rapidly around the six skeleton warriors.

Condescendingly, Ye Tian could see very clearly, on the entire swamp, there was a continuous convergence of free gray aura, which merged into the six whirlwinds, and at the same time, the color eyes on the bodies of the six skeleton warriors changed rapidly.

First of all, the three skeleton warriors who were still golden were gradually changing the color of their bodies as the whirlwind wreaked on, and in just a few moments, the three golden skeletons turned the same emerald green color as the other three.

It didn't end there, when the six skeletons turned completely emerald green, the tornado formed by the condensation of the six dead qi did not disappear, but continued to converge and spin......

Sighing regretfully, Ye Tian knew that although the dead air was still sufficient, it was ...... The third-order giant slime can only raise the skeleton warrior to the fourth order, and if you want to upgrade to the fifth order, you must find the fourth-order magical beasts, and these third-order giant slimes are no longer useful.

Just as he was thinking about it, Ye Tian suddenly frowned, and looked down, in the six gray-black tornadoes, the bones on the bodies of the six emerald green skeletons, the color seemed to be gradually deepening, just for a while, it turned from emerald green to dark green, could it be ......

;