This power is useful in all kinds of decks, as it handily counters many different strategies
They allow you to exchange ownership of permanents and profit from donating cards with positive or negative effects
You can only activate 1 Pot of Duality per turn
Your traditional green stompy decks dont have much use for this one, but if youre playing with +1/+1 counters, Auras, or trying a GW or Sultai-style Equipment deck with creatures like Ukkima, Stalking Shadow or Nazahn, Master Blacksmith, youll definitely want to include this one in your decks
Sure, there are several cards like, Orcish Bowmasters and Mirkwood Bats, that will do work and become staples of the Commander format