Commander Legends

Coral Atoll

Coral Atoll enters the battlefield tapped.
When Coral Atoll enters the battlefield, sacrifice it unless you return an untapped Island you control to its owner's hand.
{T}: Add {C}{U}.

This land enters tapped.
When this land enters, sacrifice it unless you return an untapped Island you control to its owner's hand.
{T}: Add {C}{U}.

Commander 2014

Coral Atoll enters the battlefield tapped.
When Coral Atoll enters the battlefield, sacrifice it unless you return an untapped Island you control to its owner's hand.
{T}: Add {1}{U} to your mana pool.

Visions

Coral Atoll comes into play tapped.
When Coral Atoll comes into play, return an untapped island you control to owner's hand or bury Coral Atoll.
oc
T: Add o
U and one colorless mana to your mana pool.