War of the Spark’s Limited format is strangely built, even accounting for the various deviations non-core sets take away from the “normal” Limited experience. Part of it, and the most visible part, is the huge number of planeswalkers, which requires planeswalker removal to be printed at common and makes Stealth Mission into a kill spell. But a larger part of the puzzle is how Amass warped the environment into making a go-tall strategy reliant on a single token a decent value proposition every time.
