Rewind (9ED)

Instant

Counter target spell. Untap up to four lands.

"Let's go over this one more time. . . ."
Dermot Power
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uuid: 02f2650c-0b31-5d6c-840c-6b85c4082390

2020-06-23:
Rewind targets only a spell. It doesn’t target any lands. The lands are chosen as Rewind resolves.
2020-06-23:
You can choose up to four lands, no matter who controls any of them. Those lands untap once. You can’t choose one land and have it untap four times, for example.
2020-06-23:
If the spell is an illegal target when Rewind tries to resolve, perhaps because it was countered by another spell or ability, Rewind won’t resolve and none of its effects will happen. You won’t untap any lands.