Make strict rule onlz one trade per item, to prevent botters owning trade

This is such as bullshit seen one guz bought all wands and put them for 250 div .. such as shit get rid of those botters and hackers

One simple rule one trade per item will solve this.

I dont want a core aspect of the game and its economy destroyed because you dont get an item for cheap.

Nobody bought "all wands". You seem to be looking for a very specific item that probably was profit crafted by someone. Lower your expectations or raise your budget. The item is worth what someone is willing to pay.