Lexicon, Vestige of Language

Vestige (You may start the game with this card
haunting your commander. A creature haunted by a
spirit may use that spirit's activated abilities. When
the creature this is haunting leaves the battlefield, exile
this card.)
{3}: Change the text of target spell, permanent, or emblem by replacing all instances of one color,
basic land type, creature type, or card name with another.