Everyone: Necromancer, Summon the Skeleton Army!

Five hundred years later, mankind has moved from the era of science and technology to the era of full-time work for all. A sudden mutation has caused all kinds of monsters to become rampant, human civilization has collapsed, and survival is facing huge challenges. Job-changing monuments were transmitted from the depths of the universe. At the same time, there are countless secret realms, dungeons, abyss, and unknown restricted areas. Fear, danger, treasures, opportunities, everything is unspeakable! Human beings are like weeds, indomitable. Only by constantly killing monsters and becoming stronger can we find a place of survival for ourselves, our family, our friends, and even all mankind. On the day of his job transfer, Lin Qingxuan became a necromancer! "I don't need anyone's help. I can summon countless warriors at any time and form an invincible army. How about we have a fight!" "Death is the stage, loss of life is the asset!" Level one summoning technique, summon two skeletons! Level two summoning technique, summon four skeletons! Level three summoning technique, summon eight skeletons! … Level 30 summoning technique, summon? Sorry, I'm not very good at math, so I can't do some calculations! Ten black iron skeletons can be strengthened into bronze skeletons. Ten bronze skeletons can be strengthened into silver skeletons. Hundreds of silver skeletons can be strengthened into gold skeletons. Hundreds of golden skeletons can be strengthened into knight skeletons. … A level 30 summoning spell. Can it be strengthened into a knight skeleton after summoning it once? Oops, it's so annoying, I can't even calculate it! He also has a god-level passive transformation technique, in which any damage he takes will be transferred to the summoned creature. From then on, there was an extra six in the world! This story is purely fictitious and any similarities are purely coincidental!