I don't think I knew any legitimate strategy back then so as far as I can recall my deck had like 3 or 4 types of energy clogging it up, which I suppose is the equivalent of the classic '4 Fire moves on Charizard' syndrome
Card draws advantageous effect can also be mimicked by cards that dont even draw cards in the first place
Changed Kameks Broomstick
This Legendary planeswalker card, Dungeon Master, would benefit a control deck that focuses on stalling the game and gaining incremental advantages over time
As for the abuse, I'm not sure it's really possible to believe that it won't happen, especially with people buying Happy Meals just for the cards, all the waste, and so on
All the exclusive reprints found at those events go for much more than their cheapest variants