White also has a way to bounce a manifested card they need. Not just that, this also blocks early so you don't get swarmed by Mardu before you're ready and serves as a Deputy of Acquittals effect, historically good in Limited.
There are so many potential uses for this card, it might as well be called "Jeskai Barricade Charm". I love this card.
Could this see play in Constructed? I don't know. I think it is possible and if it does, it could be worth a buck or two. Keep an eye out for these sitting in draft chaff. I know most people give their prerelease chaff to kids (at least I do) but some people abandon it and this is a card I'd pull out.