My friend is trying to build a lawful neutral paladin, who has an oath with a god of death. (the raven queen specifically) and was looking through the PHB.
OATH SPELLS Each oath has a list of associated spells. You gain access to these spells at the level description. Once you gain access to an oath spell, you always have it prepared. Oath spells don't count against the number of spells you can prepare each day. If you gain an oath spell that doesn't appear on the paladin spelllist, the spell is nonetheless a paladin spell for you.
Now I've read this thoroughly, and it says that the spells are always prepared. Does that mean that the spells can be used as many times as the paladin see fit? As often as they like? I feel as though I should know this, but for the life of me i'm not confident in an answer.