Soul of Ixalan's Sea

{2}{u}{b}{r}: Create three treasure artifact token with "{t}, sacrifice this artifact: Add one mana of any color to your mana pool." Use this ability only if you control no others creatures.
{2}{u}{b}{r}, Exile Soul of Ixalan's Sea from your graveyard: Create three treasure artifact token with "{t}, sacrifice this artifact: Add one mana of any color to your mana pool." Use this ability only if you control no others creatures.