Pariah's Shield
Artifact — Equipment
All damage that would be dealt to you is dealt to equipped creature instead.
Equip 
To bear the shield of the pariah is the highest honor a Boros can receive—and the last.
Doug Chaffee
Ravnica Remastered (RVR)
• #393zRulings
If Pariah’s Shield isn’t attached to a creature, all damage that would be dealt to you is dealt to you normally.
(wotc • 2005-10-01)
Rulings
If Pariah’s Shield isn’t attached to a creature, all damage that would be dealt to you is dealt to you normally.
(wotc • 2005-10-01)