and only 6 creatures to sacrifice, i guess the percentage of getting cremation and ball on starting hand with a lava destroyer isn't high enough for an early take down....
Now, I'm pretty terribad with probabilities, but I'm pretty sure the chance of drawing
at least one ball lightning and one cremation in the first 7 cards is around 69% (68.889%). If you go second, you've got an even better chance - around 76% if I'm doing this math correctly. That's plenty good enough for the deck to be viable, especially in addition to the other combos that are available.
I haven't tried this yet, but it looks quite fun and speedy. Also, like you say, pillarless is badass. Mostly negates denial from earth/gravity and dark(/fractal).
And btw, the 6x5 setup is nifty.