Var-Lor, the Black Crow

All Ravens under your control gain Flying and
have Menace.
{1}{b/r}: Var-Lor, the Black Crow deals 1 damage to target creature. That creature becomes a
Raven in addition to its other types.
{1}{b}{b}: Create a 2/2 black Raven creature token
with Flying.
{3}{b}{b}: Gain control of target Raven.