If an opponent gains control of one of your creatures, that creature phases out, and the duration of the control-change effect expires before it phases back in, that creature phases in under your control as that opponent's next untap step begins
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Summary: Take their best card, take something that blanks their plays for a turn or two, or take their one out to your best card
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Hideaway 5 (When this enchantment enters, look at the top five cards of your library, exile one face down, then put the rest on the bottom in a random order.) At the beginning of your upkeep, you may mill three cards