Round 1: RG000R6
Round 2: 40210R700004
Round 3: 86C12RB0000C
Round 4: 4V073RB000000002
Round 5: 40E60RB000008
Whatever time limit you want, doable in 5, 8 is probably the sweet spot.
This encounter starts with the theme of pure Hell Knight melee aggression, with less of a focus on parrying ranged attacks, and then builds on that throughout the 5 rounds.
