Saeviomagy
Adventurer
Oh, can't ready an action for when he comes back to you? Cause... I mean... that's perfectly legal already, right. And probably better than a charge
How is it better than a charge? Losing the action if the foe does the smart thing and doesn't come back is a pretty hefty penalty.
And don't mistake this for a change that had to happen because the mechanic was ruining the game. It's purely us thinking "you know, it's really weird that you can stand and attack someone who is next to you, you can stand and attack someone 2 squares away, but if someone's 1 square away, you're just plain out of luck" and realising that very little changes if you make a minor rule adjustment to fix it.