Athreos, God of Passage + Survival of the Fittest

[spider900]

Is it possible to search for Athreos, God of Passage with Survival of the Fittest although my devotion to black and white is less than seven?

[death]

Athreos, God of Passage has one supertype (Legendary) and two card types: Enchantment and Creature. So yes, you can search it from your library using Survival of the Fittest.

[cdr]

Creatures only exist on the battlefield. The text of gods refers to creatures, so it's only relevant to the battlefield.

Everywhere else, a card with the type creature is a "creature card", which is what Survival asks for.