"What rubbish!" Niu Bi didn't think these three skeletons could pose any threat to the bison, but since they were summoned anyway, it would be good to try their abilities.

"Go, kill the bison!" Niu Bi issued the first command.

The three skeletons accepted the order and immediately rushed towards the herd of bison. Niu Bi's eyes lit up immediately, because the speed of these three skeletons was not slow, without the sluggish feeling of those level 5 skeletons.

"Maybe these three skeletons are not too rubbish." Niu Bi had a little more expectation.

But expectation is beautiful, reality is cruel. After these three skeletons launched three consecutive attacks on a bison, the damage on the top of the bison's head was mandatory -1-1-1. After that, the angry bison made three consecutive top attacks, and the three skeletons were scattered all over the ground without suspense, and failed completely.

"Rubbish, really rubbish!" Niu Bi was very depressed. He thought the skeletons could be so powerful! But he couldn't take the attack of the bison. Niu Bi even regretted choosing this profession. What if he could summon a million such rubbish monsters? He would still die.

"Stupid master!" Compared to Niu Bi's frustration, Cai Yi grabbed Niu Bi's hair angrily: "These skeletons are all primary monsters, with only 100 attack power, 50 defense, and 200 life. How can they beat a level 15 bison!"

"It hurts, it hurts..." Niu Bi covered his hair and complained: "Cai Yi, how many times have I told you not to grab my hair all the time? What if you grab my hair and make me bald?"

"Hmph!" Cai Yi let go: "You deserve it!"

Niu Bi rubbed his scalp and said depressedly: "My current ability can beat level 30 monsters, but these skeleton monsters are useless. What should I do!"

"Stupid master, these skeleton monsters They are just elementary levels. When the master upgrades their skills, the strength of these skeleton monsters will also increase. There are also intermediate, advanced, master, and perfect levels. When they are upgraded to intermediate level, they can compete with wild bulls. When they are upgraded to advanced level, they can compete with monsters at level 30. When they are upgraded to master level, they can compete with monsters at level 50. When they are upgraded to perfect level, they can compete with monsters at level 80. Moreover, the higher the level, the more skeleton monsters can be summoned. Intermediate level can summon 10 skeleton monsters, advanced level can summon 50, master level can summon 100, and perfect level can summon 500. "

"So cool?" Niu Bi's eyes suddenly lit up, and his saliva was about to flow down.

"Hmph! Now you know how powerful the necromancer is! And the skeleton is just the most basic summoning skill of the necromancer. Later, he can summon more powerful undead. The strongest undead dragon can even resist the 100-level fairy beast. "Cai Yi snorted lightly and said with a longing look.

"Wow! It turns out that the Necromancer is so awesome!" Niu Bi wiped his saliva quickly: "Okay, let me train these skeleton monsters to the perfect level, and then we'll see which monster dares to stand up to it!"

Summoning skeletons only costs 10 points of magic. With Niu Bi's 2400 magic points, these 10 points can be ignored. Moreover, since he reached level 10, Niu Bi has obtained more than 20 bottles of magic potions, so he has no pressure at all.

What makes Niu Bi happy is that after releasing the summoning skeleton once, the proficiency of this skill has been raised to the primary 0.5%. So, as long as he summons 200 times today, this skill can be upgraded to the intermediate level, and then he can compete with the bison.

"Go, go, go! Go!" Niu Bi summoned skeletons again and again to die (skeletons: Woohoo~ we are so miserable~), at the same time, the damage deepened, poison and bone cage were released continuously. After two hours, as the 200th summoned skeleton was killed by the bison, the skill of summoning skeletons was finally upgraded to intermediate level, and the proficiency of the other three skills was also improved a lot. The lowest poison was upgraded to the primary level of 65%, and the highest was the bone cage, which has been upgraded to the primary level of 83%, only 17% away from the intermediate level.

Summon Skeletons: Intermediate level 0%, consume 50 magic points, summon 10 bronze skeletons to assist in combat.

"Wow haha! Finally upgraded!" Niu Bi laughed wildly.

Caiyi also smiled: "Master, the skeleton monsters have evolved into bronze skeleton monsters. You can try their power."

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"Okay!" Niu Bi put away his smile, spent 50 magic points, and summoned 10 skeleton monsters. Unlike the primary skeleton monsters, these skeleton monsters already have equipment, a machete, a shield, and they are much stronger than the bare primary skeleton monsters.

"Hahaha, finally there are equipment, and there are 10 of them. Let me see your strength, go!" Niu Bi commanded the bronze skeleton monsters to kill the bison herd, which finally brought Niu Bi a surprise.

The bronze skeleton monster swung the knife at the bison, and the bison immediately had -100 damage on its head. After the bison butted once, the skeleton monster had -100 damage on its head, but it did not die immediately.

Niu Bi immediately checked the status of these bronze skeleton monsters: attack 250, defense 200, life 500.

The primary ordinary skeleton monster has: attack power 100, defense 50, life 200. After upgrading, the attack power increased by 150, defense increased by 150, and life increased by 300, which is a significant improvement. Moreover, the number increased from 3 to 10. Niu Bi was so happy that he couldn't close his mouth.

"Cai Yi, you are right. Intermediate skeleton monsters can really compete with bison."

"Of course." Cai Yi smiled proudly: "Master, with these skeleton monsters, you can use the taming skill with confidence. Master, look, the life of several bison has dropped below 30%."

"Where? Where?" Niu Bi looked around immediately and saw that the life of the three bison surrounded by ten skeleton monsters had dropped to about 20%, and under the attack of the skeleton monsters, it was still decreasing.

"Damn it! My summoned beast! You ten bastard skeletons, don't beat me to death!" Niu Bi immediately rushed up and kicked ten bronze skeleton monsters away with ten kicks in a row, then walked towards these wild bulls with their health values at the bottom with a lewd smile, and used the primary skill of the tamer - taming.

A light green mist spurted out from Niu Bi's palm and entered the body of the wild bull. As the green light flashed on the wild bull, the wild bull immediately shook its tail and walked towards Niu Bi, rubbing Niu Bi's chest with its scary horns, as if to please him.

At the same time, Niu Bi seemed to feel that the soul of the wild bull was under his control. With just one command, the wild bull could go through fire and water for him.

"Is this the skill of taming the beast? Too strong!" Niu Bi was very excited.

"Congratulations, Master, for taming the bison." Caiyi smiled and landed on the head of the tamed bison, touching the head of the bison: "Master, tame the other two too! The lives of these three bison are almost at the bottom, it's best to put them in the summoning space to recuperate."

"Okay!" Niu Bi immediately put the bison into the summoning space, and then felt a space that he had never seen before appeared in his mind. The bison was lazily lying in the space, as if resting.

"Is this the summoning space? It's really awesome!" Niu Bi sighed, and then used the taming skill to tame the remaining two bison, but the level of the bison was 5 levels higher than Niu Bi, so the success rate was only 30%. Although Niu Bi's own super high 32 points of luck increased the success rate a lot, it still took Niu Bi 4 times to put these two bison into the summoning space. Including the previous one, the three bison used 5 skills in total, and the success rate reached 60%.

"Sure enough, high luck is good!" Niu Bi was very satisfied with his luck value. After that, Niu Bi began to carry out the plan to capture wild buffaloes. After five hours, all the five hundred wild buffaloes were gone and all became Niu Bi's summoned beasts. However, the taming skill itself was at the maximum level, so this skill was not upgraded.

Niu Bi used the skills of the necromancer to assist the bronze skeleton monster to bleed the wild buffaloes, which improved the skills. Now the summoning skeleton skill has become an intermediate 13%. It was upgraded from elementary to intermediate in two hours before, but now in five hours, the intermediate proficiency has only been increased to 13%. The proficiency is indeed more difficult to increase as time goes by.

The damage deepening has been increased to intermediate 3%, the poison has been increased to intermediate 1%, and the bone cage has been increased to intermediate 5%. The effects of the three skills have also been improved.

Damage deepening (individual skill): intermediate 3%, consumes 30 magic points, and the damage received by the victim is increased by 40%.

Poison (individual skill): Intermediate 1%, consumes 30 points of magic, creates a deadly poison, and the victim falls into a poisoned state, reducing 30 points of health per second for 20 seconds.

Bone Cage (individual skill): Intermediate 5%, consumes 30 points of magic, a bone cage appears, making the enemy unable to move, lasting for 5 seconds.

"Hehehe..." Niu Bi laughed very proudly. Not only did several skills get upgraded, but he also got an army of 500 bison. When he encounters other monsters, 500 bison will line up to attack. That scene...tsk tsk.

Caiyi flew down from Niu Bi's head and floated in front of him: "Master, you have been fighting for more than ten hours. It's time to take a break."

"Has it been more than ten hours?" This time in the dream space, Niu Bi went from level 6 to level 10, and apart from the seven or eight hours it took to subdue the bison, it only took Niu Bi six or seven hours to level up four times. The hero was naturally the deadly poison mist, but it was a pity that the deadly poison mist could not be upgraded at all. It was very useful against primary monsters, but as the level increased, the deadly poison mist would gradually become useless, and the activation of the deadly poison mist required the skeleton staff as a medium. In the future, this skill would basically become a bottom-of-the-box thing.

A feeling of fatigue came over Niu Bi, and he stretched: "Caiyi, I'll go back then. See you tomorrow."

"Well." Caiyi looked at Niu Bi's body disappearing in the dream space, sighed softly, and looked at the refreshed bison, whose body rose into the air and gradually disappeared.

More than ten hours passed in the dream space, but only one and a half hours passed in reality. Niu Bi entered the dream space at ten o'clock in the evening and came out at half past eleven. The difference between before and after was that Niu Bi's clothes were gone, replaced by a fiery red giant python skin. The only thing that worried Niu Bi now was the problem of clothes.