After the nature of the "Age of X" reality was revealed in "X-Men Legacy" #247, "New Mutants" #24 was left to wrap it all up. Considering that all that remained was eliminating the part of Legion's mind that had created this mental illusion, there didn't actually seem to be much that needed resolving and, so, the finale to this story is padded out with a pointless fight that has no repercussions or, honestly, anything at stake. It's a shallow, anti-climactic ending that leaves the entire story as a disappointment, ultimately.
To end this charade, the focus is firmly on Legion and 'Moira,' the aspect of Legion's mind that's created the "Age of X" world telepathically. However, much of the issue is taken up with the needless fight against the human constructs designed to attack Fortress X as part of the verisimilitude of this world. It's a battle with no point and nothing at stake. Every moment of heroism and sacrifice amounts to nothing, because there are no consequences. The enemies aren't real. It's filler material and an excuse for a big action scene. Logan finally popping his claws, for example, would have meant a lot more before it was revealed that this is all in everyone's heads. As it stands, it's an empty moment.
As for the plot that actually matters, the resolution is a weak one. Given that it's all Legion doing this, it rests on him to end it, and he does in a manner that's serviceable, but not exactly an inspiring moment of character growth. The aftermath that's given here is not much more than a tease and one has to wonder how much follow-up will be seen outside of the comics Mike Carey writes.
Unfortunately, the art doesn't help the comic with Steve Kurth's work looking the worst I've ever seen from him. His line work is both sparser and messier, figures are drawn in awkward and distorted ways, and the attention to detail that usually marks his art is missing. His compositions suffer, as well, with the action scenes looking too chaotic and cramped, creating confusion instead of clear, easy-to-read scenes.
"Age of X" began well and with a lot of promise, but the second half of the story has been a big letdown thanks to a less-than-stellar reveal in the fifth part, and, here, a finale that spends so much time on something that doesn't matter before delivering an obvious finish.