Add to that the fact that with Launch Party, Assassin's Strike, and Electrickery, black and red sport the best removal of the pool, it seems like a reasonable choice

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When people say Jumpstart is worth it, they mean the full Jumpstart releases: Jumpstart (JMP), Jumpstart 2022 (J22), and Jumpstart 2025 (J25)
The reality is that there're enough other cards in various colors that you'd just move onto the next best Affinity strategy that utilizes the remaining bridges