School of Chronomancy

You seek to control the fate of the universe at its most fundamental level. While many novice chronomancers falter before the mind-bending implications of their work, masters of the craft are decisive in their manipulation of space and time. Of all the schools of magic, members of this school are the most likely to meddle with forces beyond their control, ultimately leading to catastrophe in the past, present, and future. 

Chronostutter

At 2nd level, you can freeze your spells in time for a short period. When you cast a spell, you may delay its effect until an initiative count of your choice, or up to 6 seconds when out of combat. If the effect would originate from you or requires your position, it employs the position you were standing when you cast the spell. 

Timeline Convergence

Beginning at 6th level, you can pull knowledge from versions of yourself in alternate realities. Choose a spell from any spell list of a level for which you have spell slots. You always have this spell prepared on an alternate spell list. When you cast a spell from your alternate spell list, you can't do so again until you finish a short or long rest. You can add an additional spell to your alternate spell list at 9th, 12th, and 15th level. 

Impose continuity

Starting at 10th level, when you cast a spell with a duration of 1 minute or longer, you can double its duration to a maximum duration of 24 hours. If you would lose concentration on that spell, you can use your reaction to maintain it. Affected creatures may repeat their saving throws against the spell at that time. 

Once you use this feature, you can't use it again until you finish a long rest.

Causal Paradox

Beginning at 14th level, you recieve spells that your future self sent backwards through time. At any time, you can choose a spell of 1st to 5th level and a casting time of one action or bonus action from your spellbook or alternate spell list. The effects of the spell spontaneously occur, with no action or component cost required. If the spell requires concentration, it immediately ends unless you mentally seize it and begin concentration. 

Once you use this feature, you enter causal debt and cannot cast spells of level 1 or greater as normal. You can be in causal debt for multiple 

spells, and must pay each off before you can cast spells as normal again. The combined level of all spells you are indebted for cannot exceed 5. 

When you use this feature while already in causal debt, there is a possibility that a temporal missap occurs. Roll a d20. If the result is lower than the chosen spell's level + the total level of all other spells you are indebted for, the effect fails to occur. You are still indebted for that spell. 

To pay off a spell you are indebted for, you must cast it backwards in time. It has the same action and component cost as normal, but the effects do not occur in the present.

Temporal Savant

Beginning when you select this school at 2nd level, the time you must spend to copy a spell into your spellbook is halved.