I haven't played in years, but when I did, I had a red only, direct damage deck. It had lots of mana inflating cards, and a bunch of cards that dealt X damage according to how much mana you tapped. It was good at the time. My only other deck was a white weenie deck with lots of 1 mana creatures. My hand was almost always empty with that deck. Still, as good as it was, I couldn't be bothered to keep up with the expansions, and gave my cards away.