Got rid of all the fat and lowered my card count to 40, which is apparently allowed on this challenge, and finally beat it. The end result is very similar to aww1979's "Boring Angel" deck, except with some Phyrexian Walkers and no
Preordain's.
The lone
Mirror Universe actually saved me in the round where the comp starts with two Ivory Towers, since I was dealt
Blightsteel Colossus in my hand, got my
Show and Tell countered, got out my
Platinum Angel but couldn't deal more damage than the Towers healed. Good thing I quickly only had 1 health and eventually picked up my
Mirror Universe 
That was the only round I actually needed my
Platinum Angel - "Boring Blightsteel" would be a more appropriate name for this deck, since that's how I won 9 out of 10 rounds.
Anyway, with a stripped down, Mox'ed up deck like this the challenge only took two or three tries, since with decent luck you can get out a tutor for
Tinker on your first turn on round 10, and get out your Colossus on turn 2 for the win.
.126 11
Island.1351 1
Tinker.782 1
Blightsteel Colossus.1308 1
Platinum Angel.169 1
Mox Sapphire.230 1
Sol Ring.334 4
Personal Tutor.17 1
Black Lotus.312 1
Ponder.249 1
Time Walk.1 1
Ancestral Recall.1758 1
Show and Tell.1317 2
Phyrexian Walker.725 1
Mirror Universe.173 1
Nevinyrral's Disk.165 1
Mox Emerald.166 1
Mox Jet.167 1
Mox Pearl.352 1
Mystical Tutor.168 1
Mox Ruby.499 1
Brainstorm.1891 4
Echoing Truth.894 1
Mana Crypt
Posted: 20 Feb 2011, 06:11