As said, this is just a try to get fish in a little different direction dealing more damage quicker. I would never say so far, that this is any better than Gay/r with wich I made so great experiences.
On the Serendibs: To me they were soso either. I really would like to fit in Call of the Herd. But as mentioned, with the Serendibs I have more blue cards to feed the fetch-spells (21 blue spells should really be enough, did you miss the efreets, master?

) and I allready have a synergie lack with Boas and Dryads together.
Daze I really like just with Spiketail together, which I cut for the damage dealing reason. But for sure both are great tools for time advantage, which is fish's greatest strength. But again: We tried to create some kind of disturbing damage-dealing-machine with support of Curiousity.
No third Null Rod is really an issue we have to solve. I just couldn't find space yet, but I'm open for ideas what to cut for it.
I played against a Bob.Deck but as allways in Workshop decks, not the big guys - in this case the titan - are the problems. The Welder are. When you manage to keep them of their mana resources and manage to wipe out the Welder, no Titan will show up. Fire/Ice will help here too after boarding.
No Mishra's and two Rishadan Port is just a test in the moment: In the moment I'm fine with the constellation.Without many manlands the three-casting-cost-slot of the efreets is not a problem.