mtg.wtf

This land enters tapped unless you control a Swamp or a Mountain.
{T}: Add {B} or {R}.

This land enters tapped unless you control an Island or a Swamp.
{T}: Add {U} or {B}.

This land enters tapped unless you control a Plains or an Island.
{T}: Add {W} or {U}.

This land enters tapped unless you control a Mountain or a Forest.
{T}: Add {R} or {G}.

This land enters tapped unless you control a Forest or a Plains.
{T}: Add {G} or {W}.