[phiwum]

I'm not sure she can strike you.

You pointed out to me not so long ago that a gargoyle doesn't get engaged prior to landing on you, because he's not in a front hex. He's above you.

The giant can't strike someone he's knocked down because that figure isn't in a front hex. He's under the giant.

He can, of course, be trampled as a free action. And of course, the giant can back up next turn and take a swing, but she can't do it the turn you fell down.