Nathaniel

His evolution would cause his muscles to grow to big and surpress the bones and nerves throughout his body[2]. In Chapters 54. The author say His MBIT is INTJ. His favorite things are strong people and children.

Powers and Abilities: Superhuman Physical Characteristics (Nathaniel has a physique that transcends the strongest humans on Earth. ) Enhanced Senses (He could sense the presence of someone beyond the walls) Adaptation & Reactive Evolution (The more you inflict pain on him, the more his strength grows) Pain Tolerance (Endured the painful modifications he made to his body, and withstood the pain of his muscles liquidifying) Physical Strength: Building level+ (Is the strongest Apostle in terms of physique and power), higher with evolution (Could use a drug that increases his physique exponentially), Far higher with peak evolution (Using a special drug, he burns away all his muscles and increases his physical strength)Attack Potency: Building level+ (Is the strongest Apostle in terms of physique and power. Injured Peter's hands after his evolution and was evenly matched in a slugfest with him), higher with evolution (Could use a drug that increases his physique exponentially), Far higher with peak evolution (Using a special drug, he burns away all his muscles and increases his physical strength)

Durability: Building level+ (Endured attacks from Peter and only lost due to the excessive muscle growth), higher with evolution (Could use a drug that increases his physique exponentially), Far higher with peak evolution (Using a special drug, he burns away all his muscles and increases his physical strength)

Speed: Hypersonic (Could keep up with Peter)

Intelligence: Genius (He is a natural born genius who was the youngest student ever to enroll in a medical university at the mere age of 13. Re-enginereed his own body to the point that it reached top physique and could evolve just by being damaged)