It's quite possible that I'm out to left field here, but I don't really see what all this e10n* talk is about.
Squirrel is bang on with the scales build.
Scales is the way to go those commanders cost an arm and a leg! I haven't tried expanding with the non sacred smaller giants but, they look pretty good stat wise. IF I were to go for a blessing I'd rather go F4E4N4 or something like that, to maximize killing and minimize standing around waiting for the DRN to screw over your E10N* giants which you banked everything on.
*shrug* E9N* has been around for awhile now most people know what to do to stop it in it's tracks (swarm them giants and/or fat/paralyze/soulslay/skelli/blindness/tangle/etc spam). You're putting your eggs in one basket. Small rush map sure. Larger map, those giants are going to gas as magic comes into play and then what do you do? Even if you played an aggressive early game thats only going to get you ganked in the end.
So yeah, imo don't bother with the e9, go scales and minor rainbow bless, and fire is necessary to maximize every attack being a hit and thereby a kill.
Anyways my 2 cents carry on.