There // They're // Their (MB2) (#301)

Name: There
Mana Cost: {U}
Type: Instant — Lesson
Oracle Text: Exile target creature you control, then return it to the battlefield under its owner's control.
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Name: They're
Mana Cost: {1}{U}
Type: Instant — Lesson
Oracle Text: Up to three target creatures can't be blocked this turn.
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Name: Their
Mana Cost: {2}{U}
Type: Instant — Lesson
Oracle Text: Target opponent gains control of target creature you control.