Merlin Witch Hunter
Yes, that's a guy

 

Name: Merlin, Archmage, Great Sage
Origin: Witch Hunter
Gender: Male
Classification: Human, Wizard, Grand Administrator of Britain, Member of the Knights of the Round Table 
Age: 565
Powers and Abilities: Super strength, speed, durability, agility, endurance, skilled swordsman, mana manipulation, telekinesis, water manipulation, can deflect energy based attacks
Weaknesses: None notable 
Destructive Capacity: At least multi city block level+, likely higher (Merlin is one of the strongest characters in the series, being the only human in the series to actually have a mana pool next to Tasha, he easily poked holes into Varete's shadow and Varete even said Merlin would for a formidable opponent for her)
Range: Several hundred meters, possibly higher
Speed: Hypersonic
Durability: At least multi city block level+ via powerscaling, likely higher
Lifting Strength: Superhuman
Striking Strength:
 Superhuman
Stamina: Superhuman
Standard Equipment: His sword
Intelligence: Merlin is a very intelligent individual, he's the best Wizard in the series and exceptionally skilled in the politics and warfare
Notable Attacks/Techniques: 

Notable OBD Victories: 

Notable OBD Losses: 

Other: