Marvel’s new X-Men crossover event “X of Swords” has turned out to be a surprisingly good fantasy story. Few fans saw it coming when the event was first announced, as the premise of the crossover – the X-Men having to go to war for their new homeland, using ten mystical swords – seemed like the average comic book gimmick. The “House of X” reboot that Jonathan Hickman and the X-Men creative team put together seemed more sci-fi-heavy than anything – with the sole exception of Excalibur, which hasn’t been the most popular book in the new “Dawn of X” line. But the fantasy elements that grew out of Excalibur have flourished in “X of Swords.”