While it might sound strange, if we don't have a Treasure token on the battlefield, we occasionally sacrifice a Desert, not so much because we want the Desert's effect but because we want to trigger revolt and hopefully flip something huge at the end of our turn with Aid from the Cowl
If the triggered ability resolves, the following things take place: Animate Dead loses the Enchant creature card in a graveyard ability and gains a new Enchant ability: Enchant creature put onto the battlefield with Animate Dead
While one can quibble with the way that Mark Hornung was able to pull out the victory, no one can argue with the power that Dredge can have in Eternal formats
Or you can add this to your 5-color ally deck and use your friends to pay for the waterbending cost
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A staple in 95%+ of decks