Break in the Case

If Break in the Case is in your opening hand
you may reveal it. If you do create three
Colorless Artifact tokens with "{2}, Sacrifice this
artifact: Draw a card"
Whenever a Creature that your opponent
controls enters the battlefield Detain that
Creature until the end of your next turn.
(Until your next turn, that permanent can't attack
or block and its activated abilities can't be activated.)