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{T}: Add {U}. If you played a land this turn, add {B} instead.
Abilities, attacks, weakness & resistance
Other cards from Doctor Who
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River of Tears (WHO 509) is a Land from the Doctor Who expansion that produces blue mana by default. If you played a land that turn, it produces black instead, giving conditional access to both colors. It serves as a tempo-friendly fixing land that rewards playing an additional land before tapping it for alternate color mana.
Catalog pricing data as of 22 Apr 2026, 01:15
