Rustvale Bridge

Rustvale Bridge enters tapped.
Indestructible
{T}: Add {R} or {W}.

Ancient Den

Goldmire Bridge enters tapped.
Indestructible
{T}: Add {W} or {B}.

Mistvault Bridge enters tapped.
Indestructible
{T}: Add {U} or {B}.

Slagwoods Bridge enters tapped.
Indestructible
{T}: Add {R} or {G}.

Silverbluff Bridge enters tapped.
Indestructible
{T}: Add {U} or {R}.

Drossforge Bridge enters tapped.
Indestructible
{T}: Add {B} or {R}.

Darkmoss Bridge enters tapped.
Indestructible
{T}: Add {B} or {G}.

Tanglepool Bridge enters tapped.
Indestructible
{T}: Add {G} or {U}.

Thornglint Bridge enters tapped.
Indestructible
{T}: Add {G} or {W}.

Razortide Bridge enters tapped.
Indestructible
{T}: Add {W} or {U}.

Flying
Modular 1 (This creature enters with a +1/+1 counter on it. When it dies, you may put its +1/+1 counters on target artifact creature.)