A couple takes on Winter Orb:
See Mark Tedin's original art here.
Winter Orb was one of my first rares, and one of the first cards that made me think, "This game right here might just be craaaazy."
And I hope someday Wizards prints a polar bear, say 2/2 for WW, with "When Runeclaw Polar Bear enters the battlefield, destroy target artifact." Give the polar bears their revenge!