I believe the old fluctuator decks used songs of the damned, cycling creatures and drain life to win. that gets around having needing hammer and speeds up your kill.
I always had fun with the deck, but it cant be competitive. It is just too inconsistent and really not that powerful. All people need to do is counter or destroy fluctuator and you are boned. And adding disruption that doesn't cycle greatly dilutes the deck.
Hrmm, now that i run it through the top 8 match ups, im finding that it just gets forced or duressed out of my hand

and im stuck just playing the rune of protection to save my hide and end up dying to decking out since they usually eat the digger next.
Fluctuator seems really really important in your deck, why not play 4 of them, as well as 4 Enlightened tutor?
one tutor gives me flexalbity and isnt a dead draw by proxy i have 4 fluctuators, 3 fluctuators is consistant enough for it to work as i only need 1 to work it.