Geometrician (5A)

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This is a work in progress.

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. In a pinch, this ability can be used to 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 change how the map works. All geometrician abilities with perspective in the name allows you to alter a volume of space. Unless otherwise noted, you can only have one effect running on an area at a time. Pick a square area within 20 feet with each side being up to 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.

Central Perspective

At 3rd level, you can grow or shrink an area. Use a bonus action to alter distances in the area of Geometrician's Perspective until the start of your next turn. When you use Central Perspective, you either lower or increase distances in the chose area. Until the start of your next turn, movement and range in this area works differently. If you choose to shrink this area, then every two squares in this area become 5 feet when calculating range or movement. If you enlarge the area, every square of range or movement in this area is 10 feet. Central Perspective only affects range and movement, such things as the area of an effect and the size a creature occupies does not change, nor does the reach of melee attacks.

Curvilinear Perspective

At 5th level, you can enlarge selected areas chosen with Geometrician's Perspective. Use a bonus action to double the reach of melee attacks and area of area effects of all allies within the covered area until the start of your next turn. For a cone this doubles the length of the cone, for a line it doubles both length and width. Such area attacks and melee attacks are enlarged, even if their effect is outside of the area of Geometrician's Perspective, and lasting effects such as the 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. Use a bonus action to make the area within the area of Geometrician's Perspective 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 and can try to to hide even if they lack concealment and remain hidden even after the end of Atmospheric Perspective as long as they don't attract attention to themselves.

Combined Perspective

At 15th level, you can use a bonus action to combine two effects of Central Perspective, Curvilinear Perspective, and Atmospheric Perspective in the same area using a single 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.