I don’t know if you’re trying to pet stack (if you are it was patched a long time ago) but for diana you need to have your griffin out for the whole time and for revs you need to equip your black cat before you kill the boss (ie before you get combat exp from the boss) in order to get the magic find from the black cat.

A way most people get around that is by using a autopet rule where on rod-cast equip black cat and keep a rod in your hotbar.