Quote from DanzBorin »
Fetch Lands for Lavamancer and a Single Taiga for sideboard options that hit artifacts and enchantments. Have to have an out against Laylines.
In my experience, we don't need to care about leylines. No well-designed legacy deck (the ones that will do well at GP's and such) is actually running them. Even if we do come across some scrub that does run Leylines in the board, we can still probably get there with our creatures and non-targeted burn.
In conclusion, we lose more win % to decks that run Wasteland than we gain against decks that run Leyline of Sanctity.