The R/u sligh thread has me wondering about how viable a R/g deck can make Ghitu Lavarunner work. The basic idea is to get the Lavamancer's text to be relevant as quickly as possible by using various free spells and get a fast clock going with hasty weenies.
Maybe something like:
4 Monastery Swiftspear
4 Goblin Guide
4 Ghitu Lavarunner
4 Nature's Lore
4 Land Grant
4 Manamorphose
4 Mutagenic Growth
2 Once Upon a Time
2 Edge of Autumn
4 Lightning Bolt
4 Chain Lightning
4 Light up the Stage
4 Atarka's Command
2 Price of Progress
2 Fireblast
4 Taiga
8 Mountain