Geometrician (5A)

This is an Artificer Specialization for 5A.

A geometrician is a master of perspective, using this in drawing, painting, and architecture to understand reality and present reality to observers. With magic, this can twist reality to the geometrician's whim and advantage.

Greyhawk: This is a new artificer tradition, based on discoveries in geometry and paining, in particular the central perspective. As such it exists mainly in progressive cosmopolitan cities.

Subclass Features

Tool Proficiency

When you adopt this specialization at 3rd level, you gain proficiency with painter's supplies and cartographer's tools. If you already have either proficiency, you gain proficiency with one other type of tool or a language of your choice for each you already have.

Geometrician's Spells

Starting at 3rd level, you always have certain spells prepared after you reach particular levels in this class, as shown in the Geometrician's Spells table. These spells count as artificer spells for you, but they don’t count against the number of artificer spells you prepare.

**Geometrician's Spells**
Artificer Level	Spells
3	Illusory Script, Tenser's Floating Disc
5	Enlarge/Reduce, Vortex Warp
9	Enemies Abound, Hypnotic pattern
13	Major Image, Gravity Sinkhole
17	Dawn, Seeming

Geometrician's Perspective

At 3rd level, you can use an action to change how the map works. All geometrician abilities with perspective in the name allows you to alter a volume of space.

Pick a 20 foot square area within 20 feet. At level 5 you can affect a 30 feet square area within 30 feet, at level 9 a 40 feet square area within 40 feet, and at level 15 a 100 feet square area within 100 feet. You need to see some of the affected area, but not all of it, and you can make the area smaller as long as it is a square. You can use this a number of times equal to your Intelligence bonus. You regain one use on a short rest and all uses on a long rest. Each use lasts a minute.

Within this area you can apply one geometrician ability with perspective in the name, and you can move the area to a new spot and change which ability affects the area as a bonus action.

Central Perspective

At 3rd level, you can alter distances in the area of Geometrician's Perspective to either shrink or lengthen distances in the area. If you shrink the area, then every ten feet count as 5 feet when calculating range or movement. If you enlarge the area, every 5 feet of range or movement counts as 10 feet. Central Perspective only affects range and movement. It does not change such things as the area of an effect and the size a creature occupies, nor the reach of melee attacks.

Curvilinear Perspective

At 5th level, you can enlarge selected areas chosen with Geometrician's Perspective. This doubles the reach of melee attacks and area of area effects used by allies within the area. For a cone this doubles the length of the cone, for a line it doubles both length and width, if no width is given it becomes 10 feet. Lasting effects such as a Web spell enlarged by Curvilinear Perspective remain large even after the end of Curvilinear Perspective.

Atmospheric Perspective

At 9th level, you can make it hard to distinguish allies within the area, making allies seem dizzy and desaturated until the start of your next turn. When someone tries to see or make a ranged attack against one of your allies inside this area, the attack roll or Wisdom (Perception) check suffers disadvantage. Allies inside the area gain advantage on Dexterity (Stealth) checks, can try to to hide even if they lack concealment, and can remain hidden even after the end of Atmospheric Perspective as long as they don't move or otherwise attract attention to themselves.

Combined Perspective

At 15th level, you can combine two of Central Perspective, Curvilinear Perspective, and Atmospheric Perspective. You can change one of these effect with a bonus action.

Designer's Notes

A geometrician is a controller, using their ability to explore the curvature of space to their own advantage.

The area of Geometrician's Perspective ability is really a cube rather than square, which I suppose applies to all square effects in Dungeons and Dragons.