With the prevalence of nonbasic lands throughout EDH, this card can easily make people very sad very quickly.
HYPER-BOOM! That is all.
Similar to my comments on Blood Moon above, this card make use to the increased prevalence of artifacts in EDH to make people sad. Since it can be pumped depending on the need, it can either be a mass wave of sadness or a targeted jet of sad aimed at one particular person.
If you're going to run a Blaze-like effect in EDH (not the greatest idea), run either this or Banefire. Banefire can't be countered, but it can be Redirected. This isn't uncounterable, but it is harder to redirect or counter. Most counter decks will leave only enough mana to counter a spell, not enough to pay extra in order to do that.
This is red's chaos perfectly represented. Someone's going to be sad at the end of this and that's what makes it great. I love this card in EDH because there's a lot of stuff to go around and the end result is an oddly balanced board.