Graftling Discharge

You have evolved to use your noxious digestive fluid as a defence mechanism. You gain the following benefits:

• You can use your action to expel a spray of acid in a 5 by 30 ft. line. Each creature must make a Dexterity saving throw (DC 8 + your proficiency bonus + your Constitution modifier). A creature takes 2d6 acid damage on a failed save, and half as much damage on a successful one. The damage increases to 3d6 at 6th level, 4d6 at 11th level, and 5d6 at 16th level. Once you use your discharge, you can't use it again until you finish a short or long rest.
• You have resistance to acid damage.