Karoo

This land enters tapped.

When this land enters, sacrifice it unless you return an untapped Island you control to its owner's hand.

: Add .

This land enters tapped.

When this land enters, sacrifice it unless you return an untapped Mountain you control to its owner's hand.

: Add .

This land enters tapped.

When this land enters, sacrifice it unless you return an untapped Swamp you control to its owner's hand.

: Add .

This land enters tapped.

When this land enters, sacrifice it unless you return an untapped Forest you control to its owner's hand.

: Add .

When this land enters, sacrifice it unless you return a non-Lair land you control to its owner's hand.

: Add , , or .

When this land enters, sacrifice it unless you return a non-Lair land you control to its owner's hand.

: Add , , or .