Well, don't forget the part where you are going to "Come join us and help redefine technology and software engineering at Wizards of the Coast!"
So in addition to doing all phases and types of development work, you will get to design their development methodology, and then select, bring up, and administer a suite of tools for them. I guess there is the advantage, though, that you don't have to argue with anyone about which source control or bug tracker to use. That's always so contentious.
EDIT: It's very odd. I looked at their other SW job descriptions and they all seem pretty normal. This one is just wacky.