Quote from Vannatar »People seem to be focusing a ton on "its ability to ramp you." My question is this: how often are you really going to have a land in your graveyard and have this on turn three? From my perspective (and granted I'm looking at it from the perspective of a bigger cube - 720) there are only so many lands that get themselves into the graveyard. I remember trying out cards with the Delirium ability and assuming at the time that I could almost take for granted that I'd find some way to get a land into the yard; it was harder than I thought. Maybe you won't have your one fetch and this both early. Maybe you won't even have a fetch in your deck. Of course, you could have other lands like Strip Mine, but in my 720 card cube I only have seventeen lands that easily enter the graveyard. Obviously manlands can die, and you could use spells to loot away lands as well. I just don't think this is a consistent source of early ramp in bigger or even mid-sized cubes.
Additionally, it's a one-time use unless you - or your obliging opponent I suppose - puts another land into the yard.
I could be totally wrong here, but I honestly didn't see "slam dunk Gruul cube card" when I first saw this; I saw "another interesting Gruul card for a lands-matter package."