I have a couple other suggestions...
1, Yes, bloodmoon is great. We all know this. With a bloodmoon out, it is feasable to use Fireblast with your Artifact lands (Artifact Land - Mountain). PoP on a stick is evil and wrong, as doing 10 damage a turn to a person with one spell shouldn't happen :\
Obvious change -3 Pillage +3 Blood Moon
Fit PoP in MD/SB.
I personally HATE your creature selection... Slith is too expensive for sligh, so it should be replaced by somthing a bit more effective, like Jackass pups.
Lose Sol Ring and perhaps a couple more basics... Your running 21 mana sources where your effect mana curve ends at TWO! (Yes, I know, four for scepter, but

) I also might fit in a chrome mox and some other restricted artifact goodness for saccage to the Blast. "MOX BLAST!". Sorry.