Asmor
First Post
My biggest issue was that any race can have any Dragonmark.
According to the book any race can have any mark. It would be really easy to change in one's game, but that's not the point of the thread.
According to the book, as well, this is something that is incredibly rare and also potentially troublesome for the so-marked, as not only is it an aberrant mark but it also threatens whichever house's toes they've inadvertently stepped on.
I actually have a PC in my game who's got such a mark, a Kalashtar with the mark of healing. I discussed it with him beforehand and he understands all the ramifications that come with that. He's playing them up, in fact, as the dragonmark is on his bald head, necessitating him to keep a hood on at all times.
Let's just say that it's a plot point I fully intend to utilize in the future

The warforged encounter power is also very odd, in that it makes you play a game of chicken about when to activate it (more HP now, or even more HP later?) for reasons that seem pointless. How is this tactically interesting?
You just answered your own question! How is an ability which has a built-in game of chicken daring you to delay activating not interesting??? As a huge fan of warforged, I'm quite happy with the 4e treatment of them, particularly all the nifty things they get like final messengers, shoulder- and arm-mounted crossbows, etc.