Magpie's Road

Magpie's Road enters the battlefield tapped.
{t}: Add {b} or {r}.
{b}{r}, {t}: Choose a creature you control and flip
a coin. If you win the flip, it can't be blocked
this turn. If you lose the flip, put it on top of your library.
The Corvidian Trust meets on living streets and capricious alleyways that snake through the geography
of Belgazzio, creating useful paths and impossible intersections.