EVO System supposed to be a Party Zone?

THere is a core called 'Increase party exp', iirc. But even still, from all the prep reading of threads and such over the last week, it was portended to be a Party Zone. If all there is is the Core for that, then there's just no point. Cores only last one run.

I believe there's a shop to obtain them. Most likely, that one would be there. Didn't have time to check myself.