Heian era Sukuna's overwhelming power and abilities far surpass those of Weapon Master Lvl 10. With a power level of 10 and unmatched magical capability (magic power of 50), Sukuna’s Malevolent Shrine Domain attack can hit every target within its radius without fail, making it difficult for anyone, including the highly skilled Weapon Master, to evade or defend against. Additionally, Sukuna's near-immortality due to his mastery of the Reverse Cursed Technique provides him a significant advantage, allowing him to endure and survive attacks that would incapacitate other opponents. In contrast, although Weapon Master Lvl 10 excels in weapon mastery and precision cut, his overall lower stats and lack of high-level magical abilities put him at a severe disadvantage against Sukuna’s intense power and diverse skill set.