1 Oct 2008
The only difference between a colored artifact and a colorless artifact is, obviously, its color. Unlike most artifacts, a colored artifact requires colored mana to cast. Also unlike most artifacts, a colored artifact has a color in all zones. It will interact with cards that care about color. Other than that, a colored artifact behaves just like any other artifact. It will interact as normal with any card that cares about artifacts, such as Shatter or Arcbound Ravager.
1 Oct 2008
If an effect says "Search your library . . . then shuffle your library," you shuffle you libraries even though you can't search.
1 Oct 2008
Effects that instruct you to reveal or look at cards from the top of you library will still work. Only effects that use the word "search" are affected.
1 Oct 2008
If an effect says "You may search your library . . . If you do, shuffle your library" or "You may search your library . . . then shuffle your library," you can't choose to search, so you won't shuffle.