When a double-faced card enters the battlefield from anywhere, it will always have its face-up or day side showing. In most cases, these cards enter play because they have been cast and are resolving. However, it is possible for these cards to enter play via other methods.

For example, lets assume that a Krallenhorde Wantons (the back or night side of Grizzled Outcasts) has been exiled by a Fiend Hunter. If this Fiend Hunter leaves play, the exiled card will be returned to play. However, when it returns to the battlefield, its Grizzled Outcasts side will be face-up and showing. This is because this card that enters play is a new object and has no connection to the Krallenhorde Wantons that was previously in play.