I love Crag Saurian! Just drop him in a burn deck and go to town! This worked especially well last year when Masticore was running rampant. But, like most decks, Fires made this obsolete.
You - "Here's my 3rd turn 4/4! Deal with it or die!"
Fires playa shrugs and says, "OK, here's my 3rd turn, untargetable 5/5, which is now attacking you!"
You - scoop, go home early, and wax nostalgic about the time when 4 turn kills were an aberration, not standard operating procedure.