As mentioned above, Krang, the All-Powerful and Ian Malcolm, Chaotician can trigger off any player drawing two cards, including yourself and your opponents
While theyre not special to collect, its always good to have a decent amount of them in each typing, so that way you always have the ones you need at your disposal: Alternate artwork energy cards: these cards come with exclusive artwork, which gives them a heightened sense of prestige, as they look cooler
For TCGs and non-sports cards, you can submit a mix of different types/games, with a 25-card minimum
Legion is also the manufacturer of sleeves for some big-name vendors like StarCityGames
I believe this remains true of Magic: The Gathering today, whether you play the table top version or the online version