As a member of the warlock class, Prosper wields magical power that he claims he won in a bet with a powerful supernatural being whom he refuses to namesome ancient entity of ineffable nature and incomprehensible power
Thanks to his handy effect, whenever you play a non-song action card, you get to ready one of your Pirate characters no strings (or exerting) attached
This makes it easier to build around Mais downside, and turn it into a one-sided damage engine for your black decks
Her power scales with creature size rather than card complexity, which keeps the deck simple while remaining dangerous
Cast it when opponents have loaded hands but limited mana, maximizing the cards drawn before upkeep payments become unsustainable
And it scales with the amount of players at a table, a hallmark of great Commander cards