It includes those Masters of Tradition specialized in funeral rites and legends about death and beings of the underworld.   Myth of the Shining
At 2nd level, when choosing this archetype, you learn the sacred flame and spare the dying cantrips (your spellcasting ability for these spells is Intelligence).
Also, when using the Detect Weakness feature, the additional damage turns into radiant damage, and increases by a dice size (1d4 becomes 1d6, 1d6 becomes 1d8, etc...) if the feature is used against Undead.   Tales from the Crypt
At 6th level, you have Advantage on Saving Throws against Fear and resistance to Necrotic damage.   Legend of the Shining Moon
At 13th level, you can cast moonbeam as a 4th level spell (your spellcasting ability for this spell is Intelligence). The spell can be cast once, then you regain its use after you complete a short or long rest.   Morals of Death
At 18th level, you are protected against instant death effects and effects that reduce your Hit Points to 0 : if affected by this type of effect, your Hit Points are reduced to 1 instead. You also become immune to any effect that reduces your maximum Hit Points.
 

It includes those Masters of Tradition specialized in the study of demons, Fiends, and evil beings from other planes of reality.   Myth of Magic
At 2nd level, when choosing this archetype, you can cast the spell protection from good and evil, (your spellcasting ability for this spell is Intelligence) targeting yourself. You can cast this spell once, then you regain its use after you complete a short or long rest.
In addition, when using the Detect Weakness feature, attacks that benefit from the damage bonus provided by the feature are considered magical in order to overcome Fiends’ damage resistance and increase by a dice size (1d4 becomes 1d6, 1d6 becomes 1d8, etc.) if the feature is used against Fiends.   Tales of the Inquisition
At 6th level, you gain Resistance to fire damage, and your attacks are always considered magical in order to overcome the damage resistance of Fiends.   Legend of the Exile
At 13th level, you can cast the banishment spell (your spellcasting ability for this spell is Intelligence). The spell can be cast once, then you regain its use after you complete a short or long rest.   Morals of Immolation
At 18th level, you gain Immunity to fire damage.  
 

It includes those Masters of Tradition specialized in the study of the cosmos, eternal beings and everything that lies beyond the veil of reality.   Myth of the Nightmare
At 2nd level, when choosing this archetype, you can cast the sanctuary spell (your spellcasting ability for this spell is Intelligence).
Also, when using the Detect Weakness feature, any successful attack that benefits from the feature’s damage bonus reveals something about the target. You can choose to learn about a single detail of the target such as: an ability score, armor class, speed, and movement methods, remaining and maximum Hit Points, a special feature, a specific resistance, immunity, or vulnerability. The additional damage increases by one dice size (1d4 becomes 1d6, 1d6 becomes 1d8, etc...) if the feature is used against Aberrations.   Tales from the Subconscious
At 6th level, you have Resistance to psychic damage. In addition, you have Advantage on Saving Throws against effects that cause stunned, paralyzed, incapacitated, and unconscious conditions.   Legend of the Revealing Dream
At 13th level, you can cast the arcane eye spell (your spellcasting ability for this spell is Intelligence).
The spell can be cast once, then you regain its use after you complete a short or long rest.   Morals of Eternity
At 18th level, you are no longer subject to death by old age so that, once you reach the maximum age related to your race, you simply continue to live on without getting any older. In addition, you have Advantage on Saving Throws against magic.