I think the last block I played was invasion. IF I could go back to then, I would play the hell out of the game some more. But the game has gotten to convoluted and craptacular that I just couldn't be bothered.
Back in the day I ran an all Red deck that usually won or lost in 10 minutes... and not just one game I'm talking the best of the 3. There were a few players who slowed it down for more consistancy, but I always did ok.
I miss turn 1 raging goblin, turn two raging goblin/shock turn 3 urza's rage, turn 4 skizzik.
it almost always happened like that. Going second killed me, and most control decks were too slow.. After turn four it was just a battle to see if I could catch enough burn for the win. If it was control I just waited out the mana for the Urza's rage.