Lady of the Reeds and Marshes is a Pantheon in Civilization VI. It increases the 
Production of Marsh, Oasis, and Desert Floodplains tiles by 1 (2 in Gathering Storm).
Strategy[]
The fact that desert terrain is poor in Production is often overlooked when compared to the even more important lack of 
Food. And while there are some features and resources that provide Food, this is not the case with Production, especially if there's no hilly terrain nearby. This Pantheon comes in handy in this exact situation!
If you've settled in the low-lying valley of a river crossing the desert, Lady of the Reeds and Marshes will add Production to many of the features nearby. And given that they usually form a solid area of 4-6 tiles, this can make a huge difference.
Lady of the Reeds and Marshes is a fine Pantheon for both Egypt and Vietnam. Egypt has a starting bias toward Floodplains and receives no damage from Floods, meaning that this gives them bonus yields from something that they already want. Vietnam also has a sizeable starting bias toward Marsh, and can take particular advantage of these tiles, especially when they have resources on them. The Māori, too, deserve an honorable mention here; because their Marae improves yields to tiles with features and because they have a particular penchant for Preserves (and tiles with Marshes generally cannot be improved anyway), this pantheon might be a situational opportunity if they stumble across a marshy expanse during their initial colonization.
Finally, players who choose this Pantheon are encouraged to build Etemenanki, which will allow their Marsh and Floodplains tiles to produce massive yields.
