If you like PVP JJC equipment on the battlefield, it is not bad to learn FM. You can tear down materials or give people FM to make money, or you can add attributes to your ring FM. If you wear PVE's equipment, you have to risk nothing left after being stolen. Brands and T-shirts can't be sold, but they can be disassembled.

I suggest studying engineering. Can't blame the thief is the biggest shortcoming of the thief. Even if a group of mice and rabbits come, they will be chopped one by one. Engineering bombs will be of great help to thieves. My bag has always been filled with magic iron bullets and frost grenades. PVE and PVP are very useful and inexpensive. Engineering eye is a good thing, and many things are very interesting, such as dwarf chicken changer, goblin rocket boots and so on.

Jewelry can promote thieves almost as much as FM, but it costs more.

Thieves are not very good at using it. Thieves don't usually drink medicine. Although the basic attribute of refining stone is very high, it is not as good as ordinary jewelry such as bloodthirsty brooch or abacus.

There are leather drums, but the cost will be high. We need 40G materials for a war drum, and tanning will improve thieves a lot, but only if G.