Nolt Marcus vs. Bengé
SPOILER!
A shadow is enough
Bengé kills Nolt by attacking through shadow, bypassing the strength that makes Nolt dangerous in a normal fight.
The Breakdown
Nolt loses because there is no conventional opponent to hit. Bengé's technique turns the ground-level assumptions of a physical fighter against him and announces that the Barbarois cannot be fought safely until their abilities are understood.
The Marcus Hunters vs. Caroline
SPOILER!
The terrain fights back
Caroline uses shapeshifting and environmental mimicry to attack the Marcus hunters from terrain they cannot initially distinguish from her body.
The Breakdown
The fight is a recognition problem first and a damage problem second. Once the hunters understand where Caroline actually is, her advantage collapses. Until then every surface around them can be the attack.
D vs. Bengé
SPOILER!
Solve the trick, end the fight
Bengé's shadow technique can overwhelm a hunter who treats it like a normal attack. D survives by recognizing the rule behind it and turning that rule against him.
The Breakdown
This is the purest Bloodlust version of D's combat style. He does not win because the movie gives him a longer exchange of blows. He wins because he understands the supernatural mechanism faster than the supernatural creature expects.
Grove Marcus Unleashed
SPOILER!
The team's last-resort weapon
Grove is physically frail, but his psychic projection gives the Marcus team destructive power far beyond what his body suggests. When the group is pushed hard enough, he becomes their most dangerous weapon.
The Breakdown
The cost is built into the technique. Grove's power can dominate a battlefield, but using it consumes the body keeping him alive. The Marcus team's strongest attack is also something they cannot afford to use casually.