If you don't create a new folder named Fonts under the WOW folder, copy the fonts and make 5 copies.
OK, here's the key.
ARIALN health, text displayed on experience.
FRIZQT_ punctuation mark
ZYKai_C injury number
ZYHei item skill description, chat font
The font of ZYKai_T login interface and the font of description text in the game.
Change the names of the fonts to those five. In addition, if you want to have different fonts, it doesn't matter. Just change the font you like to that name. For example, the chat font is in Huakang doll style, which means that the text is square. Then change Huakang style to ZYHei and Fangzheng to ZYKai_T, and it's OK!