Besides, all this talk of invisible paladins is rather moot... it's not like paladins can spend a long time invisible, with the nerfs to invisible being as they are.
It does however point to a greater issue in general. How is divine challenge supposed to work in tandem with a paladin who goes out his way to make himself inaccessible to his foes, as opposed to the more common archetype who stands in the heat of battle and challenges others to attack him?
It does not have to be invis. What if he was levitating 20 ft above the ground and the marked foe had no means of flight or ranged attacks? The same issue then resurfaces. You resolve one, you solve them all. Only problem is arriving at a plausible solution.
There are at the moment, 2 differing camps of how to resolve this, each based on different views on how a paladin ought to be played (or need not be played, for that matter). And the interesting issue is that divine challenge is apparently worded loosely enough to allow for the latter (where you mark and run). Which evidently offends the sensibilities of some of the posters here.
