Ravi, Grandmother of Sengir

{b}: Exile target white Angel. Its controller creates
a 3/3 black Angel creature token named Fallen
Angel with flying and "Sacrifice another creature:
This creature gets +2/+1 until end of turn."
{1}{b}, {t}: Scry 2.
{1}{b}, pay 1 life: Target creature gets -1/-1 until
end of turn.