How to increase hit，dodge，crit？？？

I am very confuse about that！I notice there are many people have very high hit dodge and crit.Like this guy. More than 1 million！?This is too exaggerated!!! And I find there are only few gemstone on their equipments. I don't understand.＞﹏＜What happen？？？Why？？？Can you tell me? Please!