So far Naught, who took the name to reflect that he was neither a minotaur nor a homunculi any longer, has spent some time studying sword and spell under the adventurers who liberated him. They have been perplexed by his hesitance to fight, though it eventually became clear that Naught's problem stemmed from the innate fear that the homunculi feel at being around any truly living things.
Because of his odd upbringing as a mad lich's experiment, Naught's time in the tower taught him core survival skills (rogue). His subsequent time with his liberators has introduced him to the more martial skills, with some dabbling in magic. However, their training has focused entirely on fighting with a single long sword and some minor magic. This has led Naught to favor a duelist's style, which is unusual for his race.
Minotaur (shifted homunculi), Rogue Level 1, Fighter level 3
Medium male minotaur (8 feet tall), albino skin and fur
Background: Wizard's Experiment
Str 17 (+3), Dex 13 (+1), Con 12 (+1), Int 14 (+2), Wis 9 (-1), Cha 10 (0)
Proficiency +2; Saves: Str, Dex, Con, Int
Hit Dice: 1D8+3D10 (+4); Hit Points: 31 Armor Class: 15 (14 natural plus Dex)
Languages: Common (Mercurian), Homunculi's Tongue, Minotaurish
Skills: Arcana +4, Athletics +5, History +4, Perception +1, Sleight of Hand +3, Stealth +5
Proficiency: Light armor, medium armor, shields, simple weapons, martial weapons, thieves tools (expertise)
Rogue Abilities: Expertise (Stealth, Thieves Tools), Sneak Attack (1D6), Thieves Cant (special: Homunculi language)
Fighter Abilities: Fighting Style: Dueling, Second Wind, Action Surge, Archetype: Champion (improved critical)
Minotaur Abilities: reckless, charge, gore attack (2D8+Str), darkvision 60 feet
Feats: Magic Initiate (wizard spells: Blade Ward, Mending and Comprehend Languages)
Background - Wizard's Experiment Traits: Odd familiarity: once per long rest naught can apply advantage to an untrained Arcana check on something magical, be it an item, piece or lore, or odd fact.
Armor: Naught wears only a loose tunic and leather harness. He favors his natural armor (AC 14) and dexterity.
Weapon of Choice: longsword +1 (+6 attack; 1D8+6 single-handed, or 1D10+4 as a two-handed versatile weapon; Crits on 19-20) or Gore (2D8+3 damage, possible extra 2D8 charge damage)
Duelist and Gore: for purposes of Duelist I am interpreting it literally that a duelist must be wielding a one-handed weapon to get the bonus, and gore does not qualify for it.
Design Notes: Naught is an ongoing NPC in my Saturday game. His development is based on what he's exposed to in the course of play, ergo his rogue, then fighter-duelist choices. His Champion option is based on expedience; it's much easier to adjudicate a champion fighter in play which requires none of the extra work of the other fighter archetypes. Likewise, his magic initiate feats, while based on what was taught to him, reflect a combination of what Naught could learn and what he would personally find useful; Naught is indeed "not" a real minotaur in many ways, so his spells reflect the interests of a being that began as a tiny homunculus and was eventually forged for sadistic amusement by the lich Malenkin into a giant of a being with no understanding of its own heritage. Naught really, really wants to learn what it means to be a real minotaur....but he still has yet to meet a live one!