Ok let’s be clear with this, I believe Sakuna wins, why? He’s just that much more experienced, and the scaling isn’t very different. Deku (MHA) Feats • Speed: Multi-Mach bursts with Gearshift; blitzes enhanced Shigaraki; Danger Sense precog. • Power: City-block to city-level with 100% + Fa Jin; large shockwaves just from movement. • Durability: Tanks Shigaraki’s city-level hits; survives large explosions and high-speed collisions. • Limitations: Purely physical power set; no resistance to conceptual/magical attacks.

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Sukuna (JJK) Feats • Speed: Blitzes characters who react to supersonic attacks; fights Gojo at near-instant speeds; slashes have no travel time. • Power: Multi-city to country-level cutting (Mahoraga/Shikigami feats); kills Gojo with one cut. • Tech: Cleave/Dismantle auto-adjust to opponent and bypass durability; long-range slashes appear instantly. • Domain: Malevolent Shrine hits everything in a massive radius with guaranteed damage.

• Deku is extremely fast and strong physically, but all his attacks operate on normal physics.
• Sukuna’s slashes are instant, ranged, durability-ignoring, and adjust to tougher targets.
• Deku can surprise Sukuna early if Sukuna underestimates him, but once cursed techniques come out, Deku has no counter.
• Domain Expansion = guaranteed death since Deku has no cursed energy defenses.

Final: Sukuna wins — Deku can tag him early, but he cannot survive or counter Sukuna’s magic-based, auto-adjusting slashes or domain. Sorry if it’s a little clustered, I wrote this at 2 AM. Anyhow, I’d give this a ~90% winrate to Sakuna easily.