I'm wondering how to use planer binding in the revised 5e rules as it seems that it isn't possible to actually bring creatures into you magic circle to bind. The summon spells don't summon a creature, right? They summon a spirit similar to a creature. But this isn't something planar binding works on, or is it? Is it expected that you go to the the elemental plane of air, find an elemental, beat it unconscious, drag it home, pop it in a magic circle and cast planar binding on it (I'm not necessarily against this, btw)? Or, maybe, I need to trick a priest into using planar ally and I can do something with that. Or is planar binding basically just a way of making the summoned spirits have a longer duration and that's it? Have I missed ways of calling creatures into my circle? Can I call an invisible stalker into my circle, bind it and send it with a valuable package across the ocean? Can I call a salamander and have it help me craft a sword? Is the intention to strip away all these uses for magic?