Labyrinthine Waterway

Labyrinthine Waterway enters the battlefield
tapped.
({t}: Add {u} or {b})
{2}{u/b}, {t}: Until end of turn, target creature you
contol gets +1/+0 and flying if it's blue and
+0/+1 and deathtouch if it's black.
Locals use every alley and shadowy corner of the city
to their advantage.