Setanta Macness

Setanta Macness is the one of the minor characters of the series.

Appearance
He has spiky red hair and have a physique of a bodybuilder.

He looks a bit like Mori Nagayoshi in FGO: https://fategrandorder.fandom.com/wiki/Mori_Nagayoshi

And coincidentally they have the same voice actor, same hair color, same muscular body. More importantly, they are both Berserkers.

Abilities
Berserker - the S-ranked skill increases his magic powers and his attacks and defense/endurance at the cost of lossing his sense of reason, a consequence of activating this ability would heal all of his wounds when activated, reamoving all and any superficial damage to his body.

Unknown skill - he has a skill to counter-act his berserker skill side-effect and keeps his composure.

Trivia

 * He weilds the divine treasure Gáe Bolg.