If I read correctly, you're asking how to make a new item to build in the game? Simple answer: You cannot.
This site is just a database. So we gather information from the game and put it in here, we do not create new things for the game.^^
Guy 1: "Hey, see that car?"
Guy 2: "What car?"
-screeeech-
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ign = Kazura
Server = Cancer 2
Element = Fire