Tinkerer

Affect‐Engine

You have discovered how to capture ambient magical energy and convert it into elemental output through the Affect‐Engine, converting raw evocation magic through the power of science!

At 1st level, you can have only one working Affect‐Engine at a time. Crafting a new engine causes the old one to fall apart. This number increases by one at 5th, 11th, and 17th level.

An Affect‐Engine weighs 1 lb. and is the size of your hand. It takes 1 hour to craft an Affect‐Engine, and you are able to do so with virtually any materials available so long as the total value of the materials equals or exceeds 5gp.

When you complete an Affect‐Engine, choose one of these three types of energy: cold (cold engine), fire (flame engine), or lightning (lightning engine).

You can take the Use an Object action to attach or detach an Affect‐Engine you are touching against a weapon or object. You can change an Affect‐Engine’s type with 1 hour of maintenance during a short or long rest.

Power Appliances

Affect‐Engines can be incorporated into your creations, supplying power or performing other tasks. Examples of Power Appliances are detailed on pages 99–100. When an item with an attached Affect‐Engine is destroyed, the Affect‐Engine is also destroyed.

Spellcasting

By 2nd level, you use gizmos and contraptions to tap into the power of ambient magic.

Sparknotes. At 2nd level, you scribe a sheaf of sparknotes containing six 1st‐level spells of your choice. Your sparknotes contain the results of your research into the tinkerer spells you know.

Preparing and Casting Spells. The Tinkerer 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.

You prepare the list of spells that are available for you to cast. To do so, choose a number of spells from your sparknotes equal to your Intelligence modifier + half your tinkerer level rounded down (minimum 1 spell). The spells must be of a level for which you have spell slots.

You can change your list of prepared spells when you finish a long rest. Preparing a new list of spells requires time spent studying your sparknotes and calculating the formulas and equations you must make to cast the spell: at least 1 minute per tinkerer level for each spell on your list.

Spellcasting Ability. Intelligence is your spellcasting ability for your spells since you innovate through study and inspiration. 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 spell you cast and when making an attack roll with one.

>Spell save DC = 8 + your proficiency bonus + your Intelligence modifier

>Spell attack modifier = your proficiency bonus + your Intelligence modifier

Ritual Casting. You can cast a tinkerer spell as a ritual if that spell has the ritual tag and you have the spell in your sparknotes. You don’t need to have the spell prepared.

Spellcasting Focus. You craft a scientific instrument, either a refracting prism (crystal), puzzle cube (orb), ruler (rod), meter stick (staff), or pointer (wand). You can use a scientific instrument as a spellcasting focus for your tinkerer spells.

Learning Spells of 1st Level and Higher. Each time you gain a tinkerer level, you can add one spell of your choice to your sparknotes. Each of these spells must be of a level for which you have spell slots, as shown on the Tinkerer table. On your adventures, you might find other spells that you can add to your sparknotes.

Affect Discharge

At 2nd level, when you hit a creature with a weapon attack with an attached Affect‐Engine, you can expend one spell slot to deal extra damage to the target. The extra damage is 2d6 for a 1st‐level spell slot, plus 1d6 for each spell level higher than 1st, to a maximum of 5d6. The damage type is according to the type of Affect‐Engine.

Expertise

At 2nd level, choose two of your tool proficiencies or one of your skills and one of your tool proficiencies. Your proficiency bonus is doubled for any ability check you make that uses either of the chosen proficiencies.

At 10th level, you can choose two more of your proficiencies in this same manner to gain this benefit.

Field of Study

When you reach 3rd level, you determine your field of study: Bombardier, Mechanic, or Steam Knight.

Your choice grants you features at 3rd level and again at 7th, 10th, 15th, and 20th level. Those features include genius sparks.

Genius Sparks. Each field of study has a list of associated spells called Genius Sparks. You gain access to these spells at the levels specified in each field of study description. Once you gain access to a spell, you immediately add it to your sparknotes, but you must prepare it as normal. If you gain a spell that does not appear on the spell list, the spell is nonetheless a tinkerer spell for you.

Instacraft

Starting at 5th level, with Construction you can use an action to craft an item with a value of 1gp or less. You can use this feature a number of times equal to your Intelligence modifier. You regain expended uses when you finish a long rest.

At 11th level, the value of items you can create with Instacraft increases to 25gp, and again at 18th level to a value of 100gp.

Switch Function

At 6th level, a breakthrough increases the flexibility of your Affect‐Engines. As an action or bonus action, you can change the elemental type of an Affect‐Engine you are touching to another type. To use this feature on an Affect‐Engine, it must not be performing any task. An Affect‐Engine that is attached to an object but is otherwise not doing anything is not considered to be performing a task.

Improved Affect Discharge

At 8th level, you upgrade your Affect‐Engines to consistently output bursts of energy. Once per turn whenever you hit using a weapon attack with one or more attached Affect‐Engines, you can deal 1d8 energy damage to the target (of the Affect‐Engine’s type), in addition to the weapon’s damage.

This damage increases to 2d8 at 14th level. Additional Affect‐Engines do not increase the damage, but you may choose between damage types when you use this feature.

Intense Concentration

By 14th level attempts to befuddle your mind through brute intellectual force are repulsed. You add your Intelligence modifier to Wisdom and Charisma saving throws.

Tinkerer Spells

1st Level

alarm

burning hands

charm person

color spray

create or destroy water

expeditious retreat

floating disk

fog cloud

identify

illusory script

jump

longstrider

silent image

thunderwave

unseen servant

2nd Level

barkskin

blur

continual flame

darkvision

enthrall

gentle repose

gust of wind

knock

locate animals or plants

locate object

mirror image

ray of enfeeblement

shatter

web

3rd Level

blink

call lightning

daylight

feign death

fireball

fly

glyph of warding

lightning bolt

stinking cloud

tongues

water breathing

water walk

4th Level

black tentacles

compulsion

confusion

conjure minor elemental

control water

dimension door

dominate beast

locate creature

stone shape

5th Level

cloudkill

cone of cold

conjure elemental

dominate person

fabricate

geas

modify memory