I've figured out the oracles and other things (BIG THANKS to OptiMAL), but where can I find data on Pandora's box?

Well, Pandora's box contains an event trigger (Click the box twice and a window for entering the event name appears). Give it a name, for example, "Artifact". Then click Campaigns->Campaign Properties->Events->Local Events->New, and enter the event name—in our case, "Artifact". Then on the Script tab, click New and select an action. For example, let's choose "Show Message" and enter any text. Then below the text there is a "New" window. Click it and select "Give Artifact" and choose something. After all operations, click "New" again and "Remove Script" if you want this event to occur only once. Then click OK everywhere and everything is ready ;) Here I have posted an example.