Haktos the Unscarred has an unusual pair of abilties:
As Haktos enters the battlefield, choose 2, 3, or 4 at random.
Haktos has protection from each converted mana cost other than the chosen number.
It is possible for a creature to have the protection ability without ever choosing a number. For example, Lazav, the Multifarious could become a copy of a Haktos in the graveyard, or Mirage Mirror could become a copy of a Haktos on the battlefield. In a situation like that, what will the ability do?