Acid Sprayer

Acid Sprayer is an Engineer at-will attack power for the University of Fluid Dynamics.

Your education has taught you how to spray corrosive acids, bases, and other liquids safely. You crafted an acid sprayer that deals 1d4 acid damage in a cone or line, and 1d4 more acid damage at the end of the target's turn. It can be used at-will as an action. You can easily change the shape setting of the area of effect as a bonus action to a 15 foot cone, 10 foot cone, or 20 foot line. A creature that makes a successful Dexterity save versus your Invention save DC takes no damage.

The damage increases by 1d4 when you reach 5th leveI (3d4), 11th leveI (4d4), and 17th leveI (5d4). The target also takes additional damage at the end of its next turn starting at 11th level (1d4) and 17th level (2d4).

You can safetly overload your fuel tank to intensify the blast. Doing so increases damage by +3d4 per Overload Point up to your Overload Max per turn, and creatures that save still take half damage.