Temporal Trickster

Roguish Archetype
Notes from the Nails: a real blast from the past here! I wrote this one way back in 2015, but never got around to posting it until now.

Temporal Trickster

Of the rogues who dabble in magic, only a few possess the aptitude to master chronomancy. These skillful dilettantes are found in a variety of professions, for the ability to manipulate time is useful in all manner of roguish pursuits.

Spellcasting
When you reach 3rd level, you gain the ability to cast spells.
     Cantrips. You learn three cantrips: moment to think and two other cantrips of your choice from the wizard spell list. You learn another wizard cantrip of your choice at 10th level.
     Spell Slots. The Temporal Trickster Spellcasting table shows how many spell slots you have to cast your spells of 1st level and higher. To cast one of these spells, you must expend a slot of the spell’s level or higher. You regain all expended spell slots when you finish a long rest.
     For example, if you know the 1st-level spell charm person and have a 1st level and a 2nd level spell slot available, you can cast charm person using either slot.
     Spells Known of 1st Level and Higher. You know three 1st level wizard spells of your choice, two of which you must choose from the enchantment and Chronomancy spells on the wizard spell list.
     The Spells Known column of the Arcane Trickster Spellcasting table shows when you learn more wizard spells of 1st level or higher. Each of these spells must be an enchantment or Chronomancy spell of your choice, and must be of a level for which you have spell slots. For instance, when you reach 7th level in this class, you can learn one new spell of 1st or 2nd level.
     The spells you learn at 8th, 14th, and 20th level can come from any school of magic.
     Whenever you gain a level in this class, you can replace one of the wizard spells you know with another spell of your choice from the wizard spell list. The new spell must be of a level for which you have spell slots, and it must be an enchantment or Chronomancy spell, unless you’re replacing the spell you gained at 8th, 14th, or 20th level.
     Spellcasting Ability. Intelligence is your spellcasting ability for your wizard spells, since you learn your spells through dedicated study and memorization. You use your Intelligence whenever a spell refers to your spellcasting ability. In addition, you use your Intelligence modifier when setting the saving throw DC for a wizard spell you cast and when making an attack roll with one.

Moment of Wandering Thoughts
Starting at 3rd level, when you cast themoment to think cantrip, you can perform the following additional tasks during your free turn:

• You can move up to 10 feet.
• You can attempt to pick a lock or disarm a trap.
• You can benefit from drinking potions.

Blur of Movement
By 9th level, your control over temporal magics enables you to move with incredible speed. You add 10 feet to your base movement speed and you can use your Cunning Action to take the Dodge action.
     Once you have used a Cunning Action to Dodge in this way, you must complete a short or long rest before you can do so again.

At the Speed of Thought
At 13th level, you can expend 1 spell slot of any level in order to cast the moment to think cantrip as a bonus action. Furthermore, you are no longer required to perform the spell’s verbal component, regardless of how you cast it.

Thief of Time
At 17th level, you can cast the spell lesser time stop without expending a spell slot. Once you use this ability, you must finish a long rest before using it again.

Chronomancy Spells

Moment to Think
Transmutation cantrip
Casting Time: 1 action
Range: Self
Components: V
Duration: 1 round
You briefly stop the flow of time for everyone but yourself. When you cast this spell, your current turn ends and no time passes for other creatures, while you take 1 free turn, during which you can use actions and a bonus action as normal. However, you cannot move from the location where this spell was cast, nor can you affect any object other than those worn or carried by you (as everything else is frozen in time), make any kind of attack, or cast any spells. If you let go of an item you were carrying, it also becomes frozen in time. If you consume a potion during the free turn, it has no effect (though it is consumed). Listed below are a few examples of what you could do on your free turn:

• Make an Intelligence check to remember information about something.
• Make a Wisdom (Perception) check.
• Take the Hide action.
• Deploy a bag of caltrops.
• Draw or stow weapons and shields.

Changelog: 04/09/2020: At the Speed of Thought now costs a spell slot.