In 1952, Topps began producing the sports trading cards that we know today, which included a player biography, records, and other statistics
Though, we have to wait a turn before we can start getting the ball rolling, they are very much welcomed cards in any, if not, all Ojama builds
Dark Magician decks, Red Eyes Black Dragon decks, and Blue Eyes White Dragon decks can all bring out their respective big normal monsters in a flash making this counter trap a fantastically reliable way of shutting your opponent down
Re: the EX Dragon pack those data points are from me, and indicate that that there should be heavy packs that exist in the 17.5x range (heavies typically weigh .1 to .2 more than lights, and there were numerous lights in the 17.3x range)
This enables a combo turn where every creature can tap for huge amounts of mana, allowing you to chain spells and win on the spot