Wizards of the Mythos train to make the most of ritual and formula magic unearthed from dangerous tomes better forgotten. The School of Ritualism emphasizes the occult science and alien mathematics taught by creatures of the Mythos. Wizards who follow this school are commonly known as ritualists.

Ritual Savant

Starting when you select this tradition at 2nd level, the gold and time you must spend to copy a spell with the ritual tag into your spellbook is halved.

Ritualize Spell

Starting at 2nd level, you can cast any spell as a ritual, even if it lacks the ritual tag, and you can choose to expend a spell slot when you cast a spell as a ritual in order to make it more powerful. If you cast a spell without the ritual tag as a ritual, you must always expend a spell slot even though you don’t have to prepare it.

When you expend a spell slot to cast a spell as a ritual, its duration is doubled unless doing so would result in a duration longer than the maximum of 8 hours (spells that normally last more than 8 hours are unaffected). If the spell has an increased effect when cast at a higher level, you determine its effect as if you had cast it using a spell slot of the next higher level than the level of the slot you expended. Thus, if you ritualized private sanctum using a 5th-level slot, it would take effect as if you had used a 6th-level slot. This increase doesn’t stack with any other means of increasing a spell’s effective slot level.

Rote Inscriptions

Starting at 6th level, you always have glyph of warding prepared and it doesn’t count against the number of spells you have prepared.

When you cast glyph of warding or symbol, you can use this feature to shorten its casting time to 1 action; when you do so, you cannot do so again until you finish a long rest.

When you reach 14th level, you can shorten the casting time twice before finishing a long rest and you also always have symbol prepared; it likewise doesn’t count against the number of spells you have prepared.

Universal Occult Principles

Starting at 6th level, you add one spell with the ritual tag from any class (including this one) to your spellbook at no cost. From now on, all spells with the ritual tag are wizard spells for you.

Fast Reader

Starting at 10th level, you don’t have to prepare all your spells immediately upon finishing a long rest and can choose to prepare fewer than your maximum number. At any time, if you don’t yet have your maximum number of spells prepared, you can prepare an additional spell by reading your spellbook as an action. You can also read text twice as fast and retain comprehension, allowing you to make an ability check to research in half the usual time.

Additionally, when you cast a spell as a ritual or you read it from your spellbook or a spell scroll, the spell’s casting time (including the additional time from casting it as a ritual) is half as long, to a minimum of 1 action for a spell scroll or 5 minutes for a ritual.

Scroll Mastery

Starting at 14th level, you ignore class requirements to use spell scrolls. When you cast a spell from a spell scroll, you can use your own spell attack and save DC if they are better than that of the spell scroll. You can choose to cast the spell on a spell scroll as a ritual in order to use your Ritualize Spell feature as if you had expended a spell slot to cast it; doing so still expends the spell scroll.

Additionally, you automatically succeed on the ability check to copy spells with the ritual tag from spell scrolls into your spellbook.