As Aquatic Refuge enters the battlefield, you may tap an untapped creature you control. If you don't, Aquatic Refuge enters the battlefield tapped. {T}: Add {W} or {U}.
As Prairie Monastery enters the battlefield, you may tap an untapped creature you control. If you don't, Prairie Monastery enters the battlefield tapped. {T}: Add {G} or {W}.
As Scorched Copse enters the battlefield, you may tap an untapped creature you control. If you don't, Scorched Copse enters the battlefield tapped. {T}: Add {R} or {G}.
As Sunless Ridge enters the battlefield, you may tap an untapped creature you control. If you don't, Sunless Ridge enters the battlefield tapped. {T}: Add {B} or {R}.
As Toxic Spring enters the battlefield, you may tap an untapped creature you control. If you don't, Toxic Spring enters the battlefield tapped. {T}: Add {U} or {B}.