Kitesail Larcenist - The Lost Caverns of Ixalan

Flying, ward

When Kitesail Larcenist enters, for each player, choose up to one other target artifact or creature that player controls. For as long as Kitesail Larcenist remains on the battlefield, the chosen permanents become Treasure artifacts with ", Sacrifice this artifact: Add one mana of any color" and lose all other abilities.