Swordmage's have a class feature called Swordmage Bonding. I'm wondering about two aspects of this feature.
Calling Your Sword
You're supposed to be able to call your sword to your hand:
As a standard action, you can call your bonded weapon to your hand from up to 10 squares away.
How good is your sword at returning to your hand? Does it just go directly at you on a straight line, or does it seek you out like Thor's hammer in Thor: The Dark World? How much force does it return with? Could it hurt someone on the way? Could it break through a window? A door? A wall?
This didn't seem like a big deal when I read the basic class feature, but when I look at the magic weapon Farbond Spellblade it seems much more important. This weapon's Property says, in part, "you can call this weapon to your hand from up to a mile away." I'm thinking it could encounter some obstacles over the course of a mile.
I did notice that the sort of 'story' section about the Farbond Spellblade on the same page talks about a group of swordmages that "called their farbond spellblades from beyond the walls of the fortress and fought their way free" even though they were in a dungeon.
Recreating Your Sword
You can also recreate your sword from a part of it:
If your bonded weapon is broken or damaged, you can spend 1 hour of meditation to recreate the weapon from a fragment.
How big of a fragment are we talking here? Could I intentionally cut or shave off a small piece of the hilt and carry it on me, so that I could recreate my sword if it was taken from me? I'm imagining being captured, disarmed, and imprisoned, then pulling out this small fragment from a secret pocket in my clothing, and being armed again an hour later. The feature also says that:
This process automatically destroys any other fragments of the weapon in existence
So I'm thinking that trick I just proposed would result in my sword, or the other 99% of it at least, disappearing from where my captors are keeping it and reconstituting in my cell.
Obviously these are the sort of things I would want to clear with my DM, but I'm just wondering about rules as written, or if there's any kind of guidance from Wizards on this topic.