Amphibious. Adam can breathe air and water.

Art of Flame. Given a pound of metal totalling in a value of at least 50gp, an hour of downtime, and the means to melt it, Adam can create a diminutive elemental. This elemental has 20hp, a 22 ac, and a 1d4-1 slashing attack.

Gond's Charge. Adam has a smithing modifier of +6, and advantage if the object is no more than 6 inches in any given dimension.

Spellcasting. Adam is a 0-level spell caster. His spell casting modifier is Intelligence (Spell save DC11)

Cantrips (at will): mending, 

Multiattack. The firenewt makes two attacks with its scimitar.

Scimitar. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 4 (1d6 + 1) slashing damage.

Spit Fire (Recharges after a Short or Long Rest). The firenewt spits fire at a creature within 10 feet of it. The creature must make a DC 11 Dexterity saving throw, taking 9 (2d8) fire damage on a failed save, or half as much damage on a successful one.