Your Dexterity score increases by 2 and your Constitution score increases by 1.

firenewt mature around the age of 5 years, and almost never live past 30 years in age.

firenewt usually worship imix, as such, they tend strongly towards evil alignments.

as a creature of fire, you are able to eat both traditional food as well as burning and flammable materials.

As an attack action, you can spit a mote of fire at one creature within 20 feet of you. The creature must make a Dexterity saving throw (dc equals 8+ your proficiency bonus + your Constitution modifier) The creature takes 7 (2d6) fire damage on a failed save, or half as much damage on a successful one. The damage increases to 3d6 at 5th level, 4d6 at 11th level, and 5d6 at 17th level. You can not use this ability again until you finish a short or long rest, or use your action to ingest a flask of oil.

you have resistance to fire damage. You also take no damage from lava or other hot liquids, in addition, you deal an additional d4 fire damage with your unarmed strikes.

you can breathe both air, water, and lava.

if you fail to immerse yourself in water or fire for at least 1 hour during a day, you suffer 1 level of exhaustion at the end of that day. You can recover from this exhaustion only through magic or by immersing yourself in water or fire for at least 1 hour.

firnewt are tall and lanky, typically standing between 6 and 7 feet tall, your size is medium.

Your base walking speed is 30 feet, and you have a swim speed of 30 feet.

you can speak, read, and write common and ignan.