Alucard's regen is Mid, so Dante can negate his regeneration aswell, one stab can kill here
First thing is, Alucard doesn't start with Soul Hax, my bad, he only did this for a crowd control in Aria of Sorrow. So basically, both of them have Time Stop, and both of them have Resistance to it, they actually have Resistance to basically everything that they can throw to each other, but Dante can seal Alucard, but Alucard can Soul Hax Dante, that's the scenario here at first glance, right ?
Well, no. It's much more in character for Alucard to use Soul Hax first, so if the fight depends on Sealing Vs Soul Steal only, Alucard will win, it's not the scenario here, however, since Dante doesn't need Sealing, he can also negate Alucard's regen
- But Dante, Alucard can just stab him, since he also negates his regeneration
Well, yes but actually no
Dante will have the speed advantage thanks to Quick Heart, which amps his speed by 10 times, and will have the AP advantage since the DT amps him to the point of one shotting people who are comparable to Dante's Base, as we saw in the Anime, and he have Instinctive Reactions so Alucard is not going to surprise him, and the Devil Sword Dante will give the Vampire a really hard time, even more considering that he'll have multiple Summoned Swords attacking Alucard at the same time (Just see Swordmaster in 5) and this is 100% in character for DMC5 Dante, he also uses them for defense, so considering this, it's much more easier to assume that Dante will stab him first
This is a good advantage but, if Alucard says "Soul Steal", it's game over, Dante doesn't resist a Soul Hax at Alucard's level
Will he use this before getting stabed ? We don't know, he doesn't start with Soul Hax, as I said, the only time we saw this was for crowd control which is not the case here, so for this reasons I'm going with Inconclusive, if there is another example of Alucard going with Soul Steal at the beggining of the fight, as literally the first move, then things will change
- What about Alucard's invulnerabilty ?
A DT Dante can just one shot him, well actually even base Dante maybe be able to do it, Low 2-C feats in Castlevania comes from Menace and Time Reaper, both are inferior to Alucard by a Unknown amount, while we know that a weaker version of Dante (Awakened DMC5 Dante absolutely stomps any other version o him HARD) can destroy people who are stronger than baseline. Even having some level of invulnerabilty, it's a big AP gap, Dante can hurt him