Mill or discard an Asmodeus the Archfiend, and 3 mana gets you seven cards
When tables rely on nonbasics, this instant can wipe huge chunks off life totals and end games immediately
That said, the land selection could be better I wouldnt expect Bayous or Taigas, but I wouldnt be surprised to see them, either
It allows for flexibility to pay more mana into it to get extra copies
Cragflame offers excellent stats and keywords, especially considering it comes stapled to a 3/3
Its hard to pin down why this is, especially since there are over a dozen cards in the deck that Id categorize as card advantage, with the best ones being Idol of OblivionIdol of Oblivion, SkullclampSkullclamp, and Shamanic RevelationShamanic Revelation