This is just as scary as all of New Phyrexia's
cards, but in a more subtle way than some - it's
the "uh-oh" moment when you recognize that the
germ is wielding the Modern Masters version
of Sword of Fire and Ice. The effect looks like
it's highly dependent on your opponent's deck,
but if they're playing an equipment card,
they're playing it for a reason, even if it's
not quite as devastating as the original
Mirrodin stable. Even when all that happens is
that one of your creatures is a little more
effective in combat and one of your opponent's
is a little worse, that can win games.
Irritating equipment have you down? Taking
control of it could help a bit, and it does more
than that; it even gives you a body to wield it.
If you’re having trouble breaking through an
opponent's creature that's been given only the
choicest equipment, this might be able to get
you past it, yanking away some of the Mirrodin
swords or other troublesome stabby things (as
the art itself suggests).
There is another use to this card: animating
your own equipment. While you still control the
equipment, you can target your own sword to give
it the ability to block and attack in future
combats. I think this might be the new Commander
card with the greatest Constructed application,
and I definitely think it's worth consideration
in a blue deck if you're having issues with
equipment-heavy decks.