I know this probably isn't costed right, and they'd never a make a card like this nowadays, I just wanted to conceptually make a card that felt like an ongoing earthquake kinda thing.

I find the anti-Cumulative Upkeep sentiment a shame, since it's useful and surprisingly flavorful. Players don't like playing with ever increasing costs, though. I wouldn't rule out seeing it pop up in a future set, though. As a one-and-done set mechanic, it's got plenty of legs, as Coldsnap proved.