Grotesque Guptauros Hard Level 14 - Metaphor Refantazio Prologue Demo

You can probably do this even faster/lower level by knowing his rotation of moves entirely
1. 2x Physical Attacks
2. 2x Physical Attacks
3. Takes Aim, Charge
4. Reckless Charge, Attack (Frenzy if not interrupted, I think?)
Repeat from 2, you basically have free rounds on the charge turns to just pummel him.