In the case of Charizard, only one out of the five in Brilliant Stars is a Secret card, and even then, it doesn't quite manage to earn the title of most valuable
And sure, if youre playing around with charge counters, you can get even more out of the card
Five-color Commander is another story if that's your shtick, since color identity opens up a world of possibilities and you have a ton of mana-fixing options
Those Linguistic Trapdoors Starburst is a two-mana red sorcery that reads Opponent loses next turn. To Richard Garfield, this design was akin to playing a SKIP card in UNO
SKITHIRYX, THE BLIGHT DRAGON Skithiryx, the Blight Dragon is perhaps the best Infect creature
This art quite literally breaks out of the illustration box, spreading out over the card to Incredible effect