Bazaar of Baghdad + Mana Drain? This just isn't going to work very well.
I'd suggest making this deck less about Mana Drain / 'Tog and more about Bazaar of Baghdad / Zombie Infestation.
A way to start would be the counterbase. Ideally, you'd still want the base 8, but Mana Drain just won't cut it.
4 Force of Will
4 Circular Logic
You can try adding in Duresses after that, but I have the sinking feeling that with 4 Squees AND the versatility / draw of 'Tog decks, you're going to be short on room.
The Kill:
3/4 Zombie Infestation
1/2 Psychatog
Infestation is cheaper, and 'Tog fits right in because of your tendency to dump cards in the graveyard. Other necessary cards from this point on include 4 Squee, Goblin Nabob - which means Intuition can't be passed up.
Here's where the problem comes from. You don't have enough space to run 4 Squees AND the Accumulated Knowledge engine, even when you're already in need of Intuition.
Demonic Tutor
Mystical Tutor
3 Intuition
Now, the number of tutors in the new Zombie 'Tog list can be modified to save space while still being versatile:
Demonic Tutor
Mystical Tutor
Vampiric Tutor
Merchant Scroll (optional)
Intuition
Now, you have 4 ways to tutor up Intuition, and an additional tutor to grab any card in the deck.
To recap:
4 Force of Will
4 Circular Logic
3/4 Zombie Infestation
1/2 Psychatog
1 Demonic Tutor
1 Mystical Tutor
1 Vampiric Tutor
0/1 Merchant Scroll
1 Intuition
4 Squee, Goblin Nabob / 3 Squee, 1 Death Spark
(I added the aforementioned Death Spark tech since *supposedly* Control Slaver has game against 'Togs, and this should help)
4 Bazaar of Baghdad
There is still the problem of a draw engine, other than the Bazaar/Squee engine, which requires a set-up.
Since your kill is synergistic with it, how about some Standstills?
4 Standstill
You can also use stuff like Deep Analysis which would free up more slots, but the point of the Standstills was to not create a bottleneck where the deck needs a discard outlet to function. I believe Deeps would still do wonders, regardless.
Going straight UB/r would probably be good enough - allowing you to use Death Spark and not giving you a terrible-er manabase by using 4-colors.
And without drains, I'm not sure I would use more than 2 Cunning Wishes, especially since they are no longer necessary for the kill.
Lemme know if any of this helps.