Snowstar

Mark is a genius military weapon designer who was kidnapped by a mafia gang after refusing to work for them.
They forced him to design unique weapons for five years, until one day he successfully escaped only to get shot by his trusted comrades.
*Ding! You awakened a weapon system.
When he opened his eyes, he was in a different body and in a different world.
"You want to kill a wild boar without being detected? Forget about bow and arrow. Here, I present you this sniper rifle."
"You want to kill a horde of goblins from the sky? Forget about those flying carpets and brooms. Here, I present you the fighter jet." 
"You want to kill a dragon? Forget about taking the help of the S-class adventure team. Here, I present you a nuclear bomb."
Join Mark Spencer/ Lu Zhen as he brings the whole world to its knees with the help of his weapon system.
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Note: Author isn't born in an English-speaking nation and has no editor either. So, please be understanding if there are any grammatical errors.
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Author's current works: War Online, My Soul card is a Reaper
Author's other notable works:  The Last Slytherin, The Sharingan Hyuga
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You can also support the Author through Patreon

https://www.patreon.com/snowstar

Weapon seller in the world of magic

The battles continued. After Xie Mei's win, the morale of the Xianshu sect disciple improved a lot, which only became better as three more individuals proceeded to the next round.

Combined with two byes, now, the Xianshu sect has six members who went to round 64 and most of the disciples were now completely relaxed as they watched the rest of the battles.

It was around noon. For better or for worse, 32 matches were already completed in the past three hours. There were only 27 matches to go and the crowd is quite less in the stands compared to the morning now that all the matches of Xianshu sect representatives were over.

Mark started to get slightly restless as he was sitting there for hours and he doesn't know when his turn will come. Not only him, but even his fellow representatives haven't battled yet.

Dragon Warrior Tournament (part-2)