Interesting choices...
Untap, upkeep - remove a Delay ctr, Draw, Demonic Tutor, Clone my Szadek, Island, Done.
If you untap your Vault, I'll tap it again before your draw phase.
Spiderman: 17
Hand: 4
Library: 34
In Play:
(T,T,U,U) Underground Sea x4 (B/U Dual)
(T)
Watery Grave (B/U Ravnica Dual)
(T) Underground River (B/U Pain)
(T) Swamp
(T) Island
(U)
Icy Manipulator (1, T: tap target creature, artifact, or land)
(S)
Szadek, Lord of Secrets (5/5, flying, lots of text about milling)
5 delay counters
(S) Clone of Szadek
Graveyard: Polluted Delta, El-Hajjaj, Polluted Delta, Polluted Delta
RFG: Circu, Dimir Lobotomist, Phage the Untouchable, Underworld Dreams, Spire Golem, Jester's Mask, Hypnox, Royal Assassin
TomB: 14
Hand: 4
Library: 43
In Play:
(T) Mountain
(T)
Subterranean Hanger (Subterranean Hangar comes into play tapped. Tap: Put a storage counter on Subterranean Hangar. Tap: Remove any number of storage counters from Subterranean Hangar: Add B to your mana pool for each storage counter removed this way.)
0 counter
(T)
Dimir Aqueduct (Dimir Aqueduct comes into play tapped. When Dimir Aqueduct comes into play, return a land you control to its owner's hand. Tap: BU)
(U)
Forbidden Orchard (Tap: Add one mana of any color to your mana pool. Whenever you tap Forbidden Orchard for mana, put a 1/1 colorless Spirit creature token into play under target opponent's control.)
(T)
Underground Sea (B/U Dual land)
(T)
Volcanic Island (U/R Dual land)
(T)
Izzet Boilerworks (Izzet Boilerworks comes into play tapped. When Izzet Boilerworks comes into play, return a land you control to its owner's hand. Tap: UR)
(T)
Sol Ring (Tap: Add 2 to your mana pool.)
(T)
Mana Vault (Mana Vault doesn't untap during your untap step. At the beginning of your upkeep, you may pay 4 Mana. If you do, untap Mana Vault. At the beginning of your draw step, if Mana Vault is tapped, it deals 1 damage to you. Tap: Add 3 Mana to your mana pool.)
Graveyard: Lightning Bolt, Bloodstained Mire,
Ertai's Meddling, Denying Wind
RFG: