As many of you likely know, when you cast Planar Binding, you cast a magic circle against <alignment> and use it to make a trap for the called creature.
The creature cannot cross the circle's boundaries. If a creature too large to fit into the spell's area is the subject of the spell, the spell acts as a normal protection from evil spell for that creature only.
In some cases, you may have to squeeze into or through an area that isn't as wide as the space you take up. You can squeeze through or into a space that is at least half as wide as your normal space.
So my question is: Can I Planar-Bind a called creature that is huge sized, or will the circle break?
Or, if you will, if I have to squeeze it, does it fit?
-Nearyn
I'd say that if it can squeeze, it will (it has to stay inside the circle if possible). But this will not make it happy.
If you know what you're going to summon is big, then you might want to make the circle large enough, unless you're planning to be rude to it. (Which might make it angry enough to give it, I dunno, a +2 circumstance bonus on its Charisma check to resist you, or another reason to become your Enemy For All Time after it gets back to its home plane)
If you really make the circle too small for the thing to fit it all, it's probably free. This is not recommended. All in all, it's probably a good idea to make your summoning circle big enough to fit whatever you're likely to summon in it. (Bonus points for adding a chair, some comfortable snacks, and pleasant reading material.)
Hmm a question in Homebrew section. I like. :)
If I were the DM I would say.. No. You can't.
At best, I'd agree with Tonyz in that said squeezing would impose a hefty penalty to your attempt to bargain with it. Information gained would be sketchy at best and you *better* kill it afterwards because its going to want your head on a pike for it.
I imagine a Nelfeshnee squeezed into a binding circle like Tom (from Tom and Jerry cartoons) crammed into a fish bowl. Uncomfortable, uncooperative, and pissed off.
But my default would just be "no". The spell says it has to fit, not that you can squeeze it in there like a cat into a fishbowl.
-S