dude you should check out the white creature from zendikar, at the beginning of your upkeep if you have 60 or more life you win.
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yo dude its me John...I see where we could fix this up with some of the newer cards. Look at the m11 spoiler and you'll see a better megrim, also i would run smallpox...it makes them discard 1 card,sac a land,lose 1 life and 1 creature...So you got any of the new stuff.