It is in a zone whose information status is not Public. e.g., “Ready a legend” targets a legend, because the Legend Zone is Public. e.g., “Return a unit from your trash to your hand” targets a unit card in your trash, because your trash is Public. e.g., “You may play a unit from your hand, ignoring its costs” does not target a unit card in your hand, because your hand is not a public zone. 1. Public zones are Battlefield Zones, Bases, Trashes, Legend Zones, Champion Zones, and Facedown Zones.
§ 355.10.a Core Rules PDF (officieel)
§ 355 2. Make relevant choices.
§ 355.10 A game object, player, or zone mentioned in the text of a spell, activated ability, or triggered ability is a target UNLESS any of the following are true:
