Here's the list: Unlimited Tropical Island (PL) Tundra (PL) Revised Badlands (PL, LP, GD, EX, NM) Bayou (PL, LP, EX, NM) Plateau (PL, LP, GD) Savannah (PL) Scrubland (LP, GD) Taiga (PL, GD) Tropical Island (PL, LP, GD, EX) Tundra (PL, LP, GD, EX) Underground Sea (PL, GD, EX, NM) Volcanic Island (PO, PL, LP, GD) Foreign Black Bordered - German Badlands (PL) Foreign Black Bordered - French Badlands (LP) Bayou (PL, GD) Plateau (PO, PL, GD, EX) Savannah (LP) Scrubland (PL, GD) Taiga (PL, LP) Tropical Island (PO, LP) Underground Sea (GD) Foreign White Bordered - German Badlands (LP, GD, EX) Bayou (GD, EX) Plateau (PL, LP, GD) Savannah (LP, GD, EX, NM) Scrubland (GD, EX) Taiga (GD) Tropical Island (PL, GD, EX) Tundra (LP, NM) Volcanic Island (PO, LP, GD, EX, NM) Foreign White Bordered - French Bayou (LP) Savannah (PL, LP) Scrubland (PL) Badlands (GD) Taiga (LP, GD, EX) Tropical Island (LP, EX) Volcanic Island (EX) Collectors' Edition Bayou (GD) 30th Anniversary Edition From the 30th Anniversary Edition also comes a Will-o-the-Wisp (Version 2, NM)

Here are some examples
T: Add one mana of any color in your commander's color identity
Playing zero mana creatures, or having abilities that reduce creature costs on your board to zero, is a quick way to turn Glimpse of Nature from being good to busted
Reliable Structure for Everyday Protection
Phasing your board out while leaving you immune to life total changing is the ultimate safe button