@YungMazi The reason we agreed he has superior CQC, was because of his his techniques and experience advantage(that's more questionable)(This from someone who has watched and read both series extensively.)
Tsuna's close combat style generally just involves punches,kicks the occasional burning axle, and using his precog.
Yami's close combat style involves being able to attack from any direction within a certain zone(read manazone), making undodgeable slashes(we referenced this above but here,
https://w11.mangafreak.net/Read1_Black_Clover_246),and increasing his range in close combat using his darkness slashes.
Yami also has more experience in fighting and has been fighting since he was a teenager(he's 29 in story rn so more than 15 years of fighting experience).
In terms of skill feats:
'He can sword fight opponents who outspeed him (see Yami vs Patry), or swordfight multiple opponents with a broken sword (see Yami vs The Third Eye). I don't know how impressive these feats would be considered, but the point is that he can swordfight as if the fight were in neutral position even if the match-up is otherwise a losing match-up for him, probably because his fighting style and magic spells are specifically designed for superior swordfighting.'
Tsuna's skill feats scale to Yammato being able to defeat squalo,'the best swordman' in a week, but even in that case yammato was taught the best style of swordmanship in that week, which was the reason he won.
I would go with the argument that Tsuna has superior talent, but Yami has been fighting much much longer than Tsuna has.
Even, if you want to call the experience a draw, it's inarguable that Yami has more CQC variety than Tsuna.Tsuna's style of combat is a lot more bland than Yami's.
In terms of Stamina.
Tsuna used two XX-burners in one-day correct, but remember than Enma gave him some of his dying will flames and after the second XX-burner that day Tsuna was out of energy, and it was only because enma gave him energy that he could keep going. (
https://w11.mangafreak.net/Read1_Katekyo_Hitman_Reborn_342)
Yami fought in a war againt multiple high-level character without rest(it went on for more than a day), and broke out multiple dimension-slash(Yami's equivalent of an XX-burner), and he was no worse for wear.
From what I'm seeing Yami has at least has a slight edge in CQC, and stamina.
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Litentric Teo
Squalo is not comparable to Yami , squalo is 22 in story yami is 29 , yami has been fighting longer than squalo.
Yammato's skill feats essentially boil down to him mastering a particular sword art extremely quickly, it just happened to be the best sword art ever(he adapted it yes, but the majority was there).
Squalo even trains Yammato later showing he has superior skill, it's just Yammato has superior talent.