Free-to-play players should almost universally avoid direct wildcard purchases
Not only does Blue have a reasonably low curve of enablers like Aether Theorist and the aforementioned Aether Meltdown, but Confiscation Coup feels like one of the best cards in the set, giving many decks another powerful Energy sink in addition to Aetherworks Marvel
#19 (with Rites etc.) [smash bros announcer voice] COMBO
Cabal Therapy is card I find myself cutting against decks that plan on dumping their hate card on the first turn by cheating on mana
These cards frequently serve as key engines or finishers in decks, with the effects of each card designed to earn their "legendary" name
These include a trading app, more frequent email reports, expanded collection and deck limits, trade teams, and even SMS price alerts that can be customized to your preferences