Khans of Tarkir brings with it some serious changes to Magic the Gathering. In this set are re-printed Fetch lands from the Onslaught set in 2002, an incredibly powerful play dynamic that hasn't been around for quite some time. In addition to these incredibly desirable cards, Khans of Tarkir is also the one of the last sets in the traditional 3 set Block schedule before Wizards rolls out their new 2 set block schedule outlined here.