Killingham's dream manipulation is unique, but Gear 5 Luffy's chaotic nature makes him the worst possible opponent for illusion-based powers. Luffy's unpredictable fighting style will easily overcome him.
Gunko's Arrow-Arrow Fruit offers battlefield control, but Gear 5 Luffy thrives on chaos. His ability to weaponize the environment will dismantle her rigid strategies.
As a former Fleet Admiral, Kong holds immense authority. However, his lack of actual combat showings makes it hard to gauge his threat against Gear 5 Luffy.
Saint Shamrock, a Holy Knight commander with the Figarland name, wields a Cerberus Devil Fruit sword. His skills hint at an endgame villain, but likely not enough to overpower Gear 5.
Akainu's devastating Mag-Mag Fruit boasts extreme offensive power, a painful reminder of Ace's death. His magma poses a serious threat to Luffy in a final revenge battle.
Elder Nusjuro, with his Shodai Kitetsu and formidable regeneration, is a tailor-made challenge for Luffy. His Yokai form and swordsmanship could push Gear 5 to its limits.
Saint Figarland Garling, the legendary "Champion" of God Valley and former God Knight Commander, exudes final-boss energy. Now a Gorosei, his combat ability is undoubtedly formidable, even for Gear 5.
Blackbeard's Dark-Dark Fruit can nullify Devil Fruit powers, making him a unique threat to Gear 5 Luffy. His ability to break the rules could neutralize Luffy's greatest advantage.
Imu represents the story's true climax, having already overpowered Luffy once. Their mysterious, world-altering abilities and connection to the Void Century make them the ultimate, terrifying foe for Sun God Nika.