Between this, Portable Hole, and Revoker, that's a lot of "lock" peices, or at the very least mana denial peices.

Detention Vortex {W}
Enchantment — Aura
Enchant nonland permanent
Enchanted permanent can’t attack or block, and its activated abilities can’t be activated.
{3}: Destroy Detention Vortex. Only your opponents may activate this ability and only as a sorcery.

For an uncommon, this card goes pretty late in STX draft. However I’ve found it to be pretty good in w/x weenie strategies where tempo is significant.

I think the card is worthy of consideration in vintage tempo/white weenie strategies because of its mana cost and versatility. It’s essentially a Phyrexian Revoker in the way it can turn off a Mox or a Planeswalker. I think it could pretty decent against a Workshop deck, shutting down a Walking Ballista, because the 3 colorless mana at sorcery speed is such a steep cost —or if you’ve focused a mana rock, it could be difficult to pay for it. Even if they manage to pay the 3 mana, that in itself could be a significant tempo loss to them. In combination with other mana denial strategies, it could work pretty well at further denying mana or by simply dealing with a fatty.

Mana comes at a premium for weenie strategies, so 1 mana to deal with anything (when it isn’t just shutting down mana rocks) seems worthy of a sideboard slot at the least.

I’m also envisioning playing Control/combo against Aggro control, and if they (aggro/control) play this on a Mox, I’m going to be pressed to decide whether or not to pay 3 and it could set me back too far. I suppose it’s probably just worse than Fragmentize in these specific scenario, but maybe the flexibility it has with Planeswalkers and creatures gives it a look.

Smother got outmoded by Eliminate, which obviously hits things that Power Word Kill doesn't (planeswalkers). Power Word Kill is interesting, but in a very weird niche. Victim of Night is probably a less relevant type restriction but harder to cost at BB; still, a deck that wants a 1B removal spell instead of plow, trophy, or other stuff presumably has basically just underground sea for mana sources.

There two stand out so far. Portable Hole hits alot of the format, Power Word Kill is a bit week but still better than stuff like smother that sometimes see play.