n the Champions of Kamigawa storyline, the Kami War has already devastated the plains surrounding Eiganjo Castle. Attacks by the kami have turned the fields surrounding the castle into a battered, pockmarked plain -- not unlike the surface of the moon -- called the Araba.
Here's a great look at the blasted Araba in Greg Staples' art of one of the basic Plains from Champions of Kamigawa:
Plains illustration by Greg Staples
You can also see hints of the crater plains in art you've already seen on this site. Take a look at the lower left-hand corner of Yosei, the Morning Star, the 5/5 dragon kami previewed in Mark Rosewater's column yesterday:
Yosei, the Morning Star illustration by Hiro Izawa