Area of Effects

General AOE rules:
- an area of effect must cover half of a 5-foot square to affect that square.

- Cone is an area of effect that extends in straight lines from a point of origin in a direction its creator chooses. A Cone’s width at any point along its length is equal to that point’s distance from the point of origin. For example, a Cone is 15 feet wide at a point along its length that is 15 feet from the point of origin. The effect that creates a Cone specifies its maximum length.

-Narrow Cone
A Narrow Cone is an area of effect that extends in straight lines from a point of origin in a direction its creator chooses. A Narrow Cone’s width begins at 5 feet wide and, for every 30 feet along its length, it gets 5 feet wider. For example, a 90-foot Narrow Cone is 5 feet wide for the first 30 feet of length, 10 feet wide from 35 feet to 60 feet, and 15 feet wide from 60 feet to 90 feet from the point of origin. The effect that creates a Narrow Cone specifies its maximum length. A Narrow Cone’s point of origin isn’t included in the area of effect unless its creator decides otherwise.

Alternating Widening. The creature in control of the component or effect creating the Narrow Cone decides on which side the first increment in width occurs. After that, the cone alternates on which side it widens. If the Artillerist decides the north side gets wider first. This means at 65 feet, the next row to be covered is the south side. If the Artillerist decides to widen it to the east side first, so at 65 feet, the west side widens.