Mercy, Aasimar Ascendant

{2}{w}: Nonblack creatures get +0/+1 until end of
turn. Black creatures get -0/-1 until end of turn.
{3}{w}{w}: Until end of turn, Mercy gets +2/+2,
gains flying and vigilance, and becomes an angel
in addition to her other types.
"Maybe he'll be more willing to help us if I show him
my 'special armor.'"