These are usually decked out with specialty artwork, unique powers, and so on
Let's say you're playing against control in Standard and really need to resolve a Chandra, Torch of Defiance
There are plenty of self-recurring creatures, ones with good death triggers, that you don't mind tossing away to keep Rakdos alive
Players now get a chance to get a whole bunch of cards never before seen as Starfoils, including notable cards like Cardcar D , the excellent defensive card Gagaga Gardna , and the game-changing Number C39: Utopia Ray , which gains 500 ATK while one monster under your opponents control loses 1000 ATK until the End Phase
Its especially good for cards that shine under close inspection , like clean holos, playable staples, and mid-to-high-value rares