Not effektive in what sense? I usually run non-basic spot removal to deal with especially strong lands. Are you talking about mass land denial? Because then you'd obviously run into decks with lots of basics. So, yeah, not sure what you are trying to prove.
For what it's worth I like Wave of Vitriol to basically shut down artefact and 4+ color decks that don't run enough basics, while triggering Landfall on my side. It's green, though.