This costs too much basically. Land destruction is usually best done early on. Wizards does that now mostly by only letting you hate on non-basics, even then they won't let you do it too cheap. Fighting dedicated land destruction is frustrating and generally un-fun for everyone involved. T1: Swamp, Dark Ritual, Duress (to find counters) then Sinkhole is a thing that used to happen.

If you are using costly LD, play a deck with ramp and probably stick to what others have suggested, especially Plow Under.