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Equivalent cards to That's Mine (an instant that steals a spell on the stack) in blue, since That's Mine is a blue card:
1. Commandeer – lets you gain control of a noncreature spell.
2. Desertion – gains control of an artifact or creature spell.
3. Swerve – changes the target of a spell with a single target.
4. Redirect – changes the target of a spell with a single target.
Reason: All allow you to interact with spells on the stack, similar to That's Mine.
