I noticed you can play two of these on your first turn. Even so, I think the cost is just right.
I looked at that and couldn't figure out how that would work...
play 6
towers --> 6
quanta with two 4
cost creatures = doesn't work
play 7
pillars --> 8
quanta (with mark) with two 4
cost creatures = works... but it's unupped and not really the *first* turn... to me at least
I like this card, it wouldn't be overused, but it would still have a nice potential.