There's no other card that gives you two mana for one with no downside, and this ultra-consistent ramp card can go in any EDH deck, making it an auto-include for most people who aren't making a conscious effort to be hipster
The keys to making this card work are understanding what strategy you want it to work against and finding the acceleration necessary to play it before your opponent dumps their hand
The Optimist's Gamble (Submitting at a High Value): If you're confident your card will get a 10, you can submit it at a higher service level that matches its potential PSA 10 value
Jund, Abzan, Grixis, Four-Color Shadow, and a number of underdog decks can also make great use of this enchantment as a way to keep the pressure on through multiple copies of Fatal Push, Path to Exile, Supreme Verdict, and the like
Keldeo-EX and Blastoise form a top-tier combo, while Landorus-EX punishes slower decks