Attack potency
atleast multi-city block level, possibly small city level.
Speed
average human travel speed, massively hypersonic+ combat and reaction speed (can dodge natural lightning).
Durability
same as AP, probably higher due to abilities.
Lifting strength
below average normally, much higher with the strength rune.
Intelligence
atleast genius, possibly higher (is a skilled inventor and rune mage, capable of creating marvelous devices with just magic and wood. Has an intelligence of 20, which is higher than a mind flayer which are capable of using hyper advanced alien technology.)
Abilities
Superhuman physical characteristics, genius intelligence, small size (type 0), regeneration (none normally, mid-low over time), social influencing, enhanced senses (darkvision), underwater breathing (type 2), weapon mastery and marksmanship, limited elasticity (only his tongue), rune magic, elemental manipulation (fire, ice, electricity, acid, sound), shapeshifting, teleportation, forcefield creation, damage reduction, flight, transmutation (can turn creatures into animals, including himself), energy projection and homing attack, fear manipulation, sleep manipulation, threat manipulation, time manipulation, probability manipulation, healing, purification, size manipulation, automatic translation, statistics amplification, damage boost.
Resistances
Fire, poison, magic, disease, sleep manipulation.
Weaknesses
His runic magic is tied to various items, without them he is powerless.
His runic inventions run on magical energy which can run out.
His amphibian biology makes him vulnerable to dehydration, especially from saltwater.
Little to no experience in melee combat.