Nero and I used to play hard core. I owned 13k+ cards at one time. Now I have 3k. I was always a blue green splash of white quick creature to big boy deck player. I also enjoyed designing decks to defeat specific other decks and or functions.
Those were good times! I used to use black quite a bit, I had a crazy no-creature death spell deck - Artorius created it originally. It was lots of fun. Apart from that, I also loved using red and green.