Artificer

Spellcasting. The artificer's spellcasting ability is Intelligence (spell save DC 14, +6 to hit with spell attacks). The artificer has the following artificer spells prepared:

At will: detect magic, light, prestidigitation, thunderclap 
3/day each: catapult, grease, identify (as an action), see invisibility  
2/day each: heat metal, levitate, tiny servant (as an action)

Artificer Training. The artificer is proficient with thieve's tools +6 and tinker's tools +6.

Infused Equipment. The artificer’s armor provides a higher AC than normal, and its weapon attacks are magical and include bonuses to attack and damage. Infused equipment becomes normal mundane equipment 4 days after the artificer’s death.

Infused Light Hammer. Melee or Ranged Weapon Attack: +4 to hit, reach 5 ft. or range 20/60 ft., one target. Hit: 4 (1d4 + 2) bludgeoning damage.

Infused Light Crossbow. Ranged Weapon Attack: +6 to hit, reach 5 ft. or range 80/320 ft., one target. Hit: 4 (1d8 + 4) piercing damage.

Spell-Storing Item (1/Day). The artificer can expend one of its daily uses of a spell to infuse an item with a magical charge that has the ability to cast a spell the artificer chooses from any spell list of the same level as the expended spell. The infused item retains this stored spell for 24 hours, or until the artificer expends the item’s charge. The artificer can expend the item’s charge as another action to cast the spell stored within it, using the artificer’s spell save DC or spell attack bonus.

Flash of Genius (4/Day). When the artificer or another creature it can see within 30 feet of it makes an ability check or saving throw, it can add the artificer’s Intelligence modifier (+4) to the roll.