Spitfire's B/W allies and Kor deck holds the ground agains DrWho's R/G Aggro deck.  Spitfire used Ondu Cleric and Kariba Crossroads to keep his total high enough to regain control.  The huge difference of lifegain turned what would have been a two life life total into an eight point life total which kept him out of the danger zone against the aggressive G/R deck.