Unnatural Selection

What I love doing with this card is destroying all of my opponents creatures! Play this card and Dual Nature. When your opponent puts down a token turn the token into a legend. Then turn the original into a legend. The original is destroyed and so is the token for 2 colorless mana!

Wow, its the best red manipulation card ever! Oh wait, it's blue. Still cool though and a hell of a lot better than anything in Onslaught.

Great for casual, probably not for tournaments, though. I use it in an elf deck with Elvish Champion, Thelonite Monk and Skyshroud Poacher. Too bad it doesn't turn a library card into an elf card.

Combo with Spirit Mirror for board control and a free 2/2 Reflection to beat face with... 'Nuff said.

The ability to change any creature type for one measly mana is an ability with great hidden potential. And since Unnatural Selection can use any color mana to activate itself, it can easily be splashed into any color deck you might dream up.

COAT OF ARMS: By setting all of your creatures to the same type, Coat of Arms gives them all a bonus. For 2 mana you can give 3 creatures all +2/+2.

FLAGBEARERS: Force your opponent to cast burn spells on his creatures or helpful spells on yours by turning them into Flagbearers.

SLIVERS: Give your non-Slivers all the neat little abilities like First Strike, Trample, Haste, Flying, and Regeneration for one mana per non-sliver.

CHAMPIONS: Cards like Lord of Atlantis or Goblin King give abilities to all the creatures of a type, but sadly they aren't the type themselves. Fix that Unnaturally!

WALLS: Turn your Walls into Kavus or Elementals or something and allow them to attack. Wall of Razors is 4/1 First Strike for 2 mana. Sunweb is a Mahamoti Djinn for 4 mana!

This card is very underated. In most decks some creature cards appear more then once. If there are two or more of one creature in play you can make them both legend so one will be destroyed. So it ain't that bad after all.