Professional grading plays a crucial role in the market, with third-party organizations like Professional Sports Authenticator (PSA) and Beckett Grading Services (BGS) providing standardized assessments that help determine a cards worth
While we had seen Powerstones on a few cards before it, The Brothers War was the first set that made Powerstones a key focal point
Myriad itself is a nuts mechanic
and he can tap three tokens to draw a card, letting you draw your deck to get whatever else you need to win - land destruction if your opponents have a Glacial Chasm, Impact Tremors if they have some other fog or STAX piece that stops you from attacking, Concordant Crossroads if your army doesn't have haste yet, and so on
Some examples include Hamza, Guardian of Arashin, Lulu, Loyal Hollyphant, Quintorius, Loremaster, Quintorius, Field Historian, Malcator, Purity Overseer, and Losheel, Clockwork Scholar