The title is what your oppponent will be thinking the most. :D
Simple, straight forward and boring as hell(a cold one). Freeze any creature and destroy any nasty permanent. And wait for the dragons to do their work.
The deck is rather slow in damage dealing so there might be some improvement possible in that area.
Strong points are the lack of opponent creature threats as you freeze them all. Same goes for permanents. Except all the immaterial cards ofcourse.
Any weak points are damage dealing sorcery's on your creatures. And all immaterial cards. Sometimes poison. but you can always add one purify. Smart opponents will stack their creatures in their hand and then play them all at ones, so the more congeals you have in your hand the louder he'll curse :p
It wins more than it loses in PVP.
Opponents can get frustrated playing against this deck. Its simply no fun to play against. So make jokes to lighten up the game.