A decent card, but it's held back by its speed. I can understand that an instant-speed scaling damage speed for a flat 2 can sound scary, but since it can only target a creature, it's basically a weaker Murder. I'd really have liked to have seen this at instant speed. WoTC sort of corrected it with Seismic Strike, but I don't think it should have costed an extra 1.
Pros: Scaling damage based on lands
Cons: Sorcery, creature only