Shepard, Paragon of Unity

First Strike, Vigilance
When Shepard, Paragon of Unity enters
the battlefield, name a creature type. Creatures
of the chosen type get -1/-0. Other creatures you
control that are not the chosen type get +1/+0.
Creatures you control that don't share a creature
type with any other creature you control get
+0/+1 and Vigilance.