1.- With the mark as your single

quanta generation, you can make 1 fly per 2 turns, what's quite slow and you may be wasting the other queens.
2.- With no

generation at all and no SoRs, scarab spamming just doesn't worth it because it's a slow attack growth per turn. Also, this deck has no defense at all.
I would suggest to make a more focused deck, with only 1 spammer, becuse you need

,

,

and

to make it work, and seems very unstable to try it.
The high cost of the creature spammers isn't a detail either.