Some players love the mechanic as others hate it
But when I can stop worrying about that and instead rob my opponents deck, I get to be the backstabbing cat burglar Ive always wanted to be, and if my deck sucks, maybe their deck will be better
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Mox is best when you have a lot of coloured non-artifact cards but this is how to make your affinity deck worse as a general rule
The beauty is it isnt an end-of-turn effect, so the copied artifact can be used for multiple turns
Even in the case where youre trying some kind of combo gimmick, like using this to make an Indestructible Flumph, there are much cheaper alternatives out there