here is a combo for plague spitter      

Plague Spitter    
During your upkeep Plague Spitter deals 1 damage to each creature and each player.
If Plague Spitter is put into the graveyard from play, it deals 1 damage to each creature and each played.

So by itself the creature is, ehhhhh, meteoker.  It stomps weenies and blows birds out of the way and can bust through a creature with 3 toughness.  And when you are winning it slowly helps you to your victory.  But its not that great right.

Soul Link
Enchant Creature
Whenever enchanted creature deals or recieves damage you gain that much life.

Ahhhh, wow attach that and gain life by the hundreds, but seriously gain a lot of life with this little combo.  And with a color like black white, whats the problem.
Spectral Lynx     
Death Grasp
Desolation Angel
these are just cards with dual colors, not to mention powerful single color cards cya

im out