Szadek is awful! But, he can work if you tune the deck really well and rely on the strength of UB control to back him up. Mill in my group would be pretty bad because they play a lot of graveyard stuff so I would make sure you run at least 5 cards that kill graveyards. I like Relic of Progenitus, Nihil Spellbomb, Ravenous Trap, Suffer the Past, Bojuka Bog, and Withered Wretch. It sucks having to dedicate that much, but you'll die if you don't.
Then Szadek needs double strike badly. So, add Fireshrieker and Grappling Hook. He hits for 5 during first strike (+5 counters, 10 Power total) and 10 during the normal combat damage phase (+10 counters, 20 Power total). So, 15 cards the first time he swings. If you connect again, then you do 20 and and 40. That usually kills someone.
Next, run stuff like Living Death, Living End, and Twilight's Call... and why is Liliana not on here?! She is amazing in a straight mill deck. Plan B is to beat face with their dead dudes.
The absolute best Mill creature though is Oona, Queen of the Fae because the RFGs creatures.
After looking over your list the thing that stands out the most is that you have a lot of 1 shot and weak mill effects. Unless you can take out 20+ cards with a card it's not worth running. You have a very limited amount of time to make it happen and taking down 250+ cards in that time means that you have to play big and somewhat dirty. Use the infinite combos, steal their stuff, and combo off as soon as you can.
(I really want to rebuild my Szadek deck now! I stopped about 2 years ago with it because it was really annoying to people.)
Then Szadek needs double strike badly. So, add Fireshrieker and Grappling Hook. He hits for 5 during first strike (+5 counters, 10 Power total) and 10 during the normal combat damage phase (+10 counters, 20 Power total). So, 15 cards the first time he swings. If you connect again, then you do 20 and and 40. That usually kills someone.
Next, run stuff like Living Death, Living End, and Twilight's Call... and why is Liliana not on here?! She is amazing in a straight mill deck. Plan B is to beat face with their dead dudes.
Cards like Memory Plunder and Wrexial, the Risen Deep, and Geth, Lord of the Vault are also good because they abuse full graveyards... and Geth mills too!
The absolute best Mill creature though is Oona, Queen of the Fae because the RFGs creatures.
After looking over your list the thing that stands out the most is that you have a lot of 1 shot and weak mill effects. Unless you can take out 20+ cards with a card it's not worth running. You have a very limited amount of time to make it happen and taking down 250+ cards in that time means that you have to play big and somewhat dirty. Use the infinite combos, steal their stuff, and combo off as soon as you can.
(I really want to rebuild my Szadek deck now! I stopped about 2 years ago with it because it was really annoying to people.)
WUBRGPauper Battle BoxWUBRG ... and why I am not a fan of Wayne Reynolds' Illustrations.