[Fate]

Ok, here is the way trampling works:

When a unit gets trampled, they make a defense check. If they fail, they take 8 + 2xSize AP damage (I assume the trampling units size). If they succeed, they only take 1 damage point. Either way, there is a minimum of 1 damage point.

Fliers could simply not take the minimum damage on a successful check.

The assumption is that the advantage of flight is already accounted for in the defense (their ability to realize "Elephant! Fly up now!"). A flier which avoids has flown completely out of the way (vertically or otherwise), and so doesn't take the minimum 1 damage.

I believe that isn't too complicated, and gives credence to this issue?