funny story, I was playing a guy with rhinox riders (ok) and we were at a standoff, well luckily for me, I had a mage on horsey with death lore (extra movement spell), and I ran up to him, and he blinked, I casted all the other spells to kill off his dispell, and my last spell was the free charge spell, rolled miscast...
=(
yea, needless to say, we ate my guys on his turn. You win a few, lose a few. Had other times where it worked perfectly, but we tend to remember the times it doesn't.