Name:Rustvale Bridge
ManaCost:no cost
Types:Artifact Land
A:AB$ Mana | Cost$ T | Produced$ R | SpellDescription$ Add {R}.
A:AB$ Mana | Cost$ T | Produced$ W | SpellDescription$ Add {W}.
K:CARDNAME enters the battlefield tapped.
K:Indestructible
Oracle:Rustvale Bridge enters the battlefield tapped.\nIndestructible\n{T}: Add {R} or {W}.