River Song is fun, but nothing she does will help trigger paradox
Here are some common ways to control the humidity in your surroundings
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My problems with it are that it has a high mana value, so that upkeep trigger wont always be all that impactful, and the activated ability also hits your own creatures
In a certain way, yes, Jump In
Yet, the original elixir was only borderline playable in Limited, and Elixir looks a lot worse to me