Do I need VeriFier tools to do basic networking on a 3030?
no, you can set node number on the panel itself.
Ok, that’s good news
Would I need a special card to create a network?
Yes, actually you will need two of them. One for each control panel. There are several types. HS-NCM for high speed networks and NCM for normal speed. Both have serveral models depending on whether your network is wired, Single mode or Multimode fiber. They are expensive too.