Pushing Really Big things

[Saeviomagy]

wow are you missing the point.

You switch places with a large creature.
SO:

<<<WHAT SQUARE OF THE LARGE CREATURE DO YOU SWITCH WITH?>>>
​

Flip, "switch places with X" means "slide X one square so that he overlaps your current square, then shift into any of the squares that he vacated". That's the rules for swapping places. They're spelled out pretty precisely. I'm sure someone with the books on them can give a reference.