Durkon - How powerfull?

[EmperorSarda]

Now Durkon is vampire himself, so his level would be 14+8 = 22, and he would be stronger than Malack. This can implicate that is also stronger than Tarquin.

With addition of race abilities (d12 hp dice, energy drain) and spell buffs (some Thor's might equivalent) doesn't it make him strongest revealed melee fighter in ootsverse (MItD capabilties are unknown) and second strongest character after Xykon?

Thor's Might is a domain spell, and while Vampire Durkon would still have it prepared because he hasn't renewed spells that we have seen, Vampire Durkon would get the Death and Destruction domains, the 5th level spell that he can choose from would be Slay Living or Mass Inflict Light Wounds.

Also, we don't know how level Malack is, he is at least a 12th level cleric. But beyond that, who knows.

Also knowing Tarquin, he probably has some item of negative energy protection just in case.