Shelldock Isle [The List] Chronicles −3: Return target nonland permanent

−3: Return target nonland permanent to its owner's hand

If that card has converted mana cost 3 or less

Sacrifice that creature at the beginning of the next end step

Set: Commander Anthology Volume II Type: Artifact Rarity: Rare Cost: {3} As Urza's Incubator enters the battlefield

Then do it again

Shelldock Isle [The List] Chronicles −3: Return target nonland permanentSet: The List Type: Land Rarity: Rare Hideaway 4 (When this land enters the battlefield, look at the top four cards of your library, exile one face down, then put the rest on the bottom in a random order.) Shelldock Isle enters the battlefield tapped. {T}: Add {U}. {U}, {T}: You may play the exiled card without paying its mana cost if a library has twenty or fewer cards in it.