Question is the thread title.
Skadi’s spell says it knocks the first two enemies to the back. I would expect that if Skadi casts twice, and nobody died, then my team order should be restored to the original state—after all, four troops have been knocked to the back. However, that doesn’t happen. In a recent Guild Wars battle, I went 1-2-3-4 to 2-1-3-4 (I think—I know the first two troops were flipped); when I tested outside Guild Wars, I went 1-2-3-4 to 2-1-4-3.
Based on limited testing, it looks like Skadi sends the second troop to the back, followed by the first. This means it would take four casts to restore the original team ordering, rather than the two Skadi’s spell suggests.