This is best done by cards that enter as a copy of it, but won't be sacrificed to the legend rule (you can't have more than one legendary creature with the same name on the battlefield
You can have the actual, physical card shipped straight to your door to add to your real-world collection
Gemstone Mine Although it comes with only three charges, Gemstone Mine is especially important to fix the mana in the early stages of a game
Deathrite Shaman The best mana dork MTG card While Deathrite Shaman can't end games by swinging for damage, it's an incredible mana ramp card
Like the Storm Cauldron strategy above, bouncing lands changing from a cost to an extreme advantage is pretty good
Who knows, maybe Wizards will print enough of these that actual Magic players can get one, not just scalpers