In a very stark contrast between Snow White and Mufasa, her standard variant can be purchased for less than $1 , which would suggest that the Enchanted cards value is based on its aesthetics alone, not its usefulness (or otherwise) in-game
Card advantage is a strategic concept (rather than a specific game term) and a lot broader, and basically means having more cardboard than my opponents. For starters, any card that puts more cards in your hand is card advantage, even if it doesn't say draw. But card advantage also looks at what happens in other zones
And its colorless, which makes it perfect to drop into equipment-matters Commander decks
Ive written about a variety of commanders, such as an ode to my favorite novel series growing up, Redwall, several Rube Goldberg combo commanders, and even an Unsummon-loving waifu
Id avoid some retailers that sell them at full price (or more!) and instead look for places selling these 12-card packs at a discount