An interesting idea struck me during a combat in a recent game; we were being attacked by a Chuul and our hapless gnome had been caught and grappled by the beast.
A crazy idea came to my mind, that my Wizard could fly over to them and then grab hold of their head/arm/anything and then use the Conjuration ability Dimensional Steps to rescue them from the grip of the beast.
Is there any reason why as long as the Wizard could get a grip on the gnome this wouldn't save them from the clawy grip of the Chuul?
Or indeed a spell like Dimension Door? (Provided the Wizard survives the impending attack of opportunity!)