WARNING: The following contains major spoilers for Wolverine #12, by Benjamin Percy, Scot Eaton, JP Mayer, Oren Junior, Matthew Wilson & VC's Cory Petit, on sale now.
While most of mutantkind is busy preparing for the upcoming Hellfire Gala, Logan has some particularly bloody business to attend to. Under Dracula's leadership, the Vampire Nation has been making themselves stronger and more resilient than ever before by using Wolverine's blood to eliminate their lethal reaction to sunlight. Along with his allies among the vampire-hunting Nightguard, Logan has been able to deal at least one devastating strike to his enemies. To truly turn the tide of this shadowy war, Logan has even gone a step further and asked the vampires of Sevalith for a favor in WOlver
Unleashing tainted clones of himself for the vampires to feed on was a good start to Wolverine's long-term goal of ending the threat and saving Louise from her own impending vampiric transformation. A good start is only that, though, and so the two set out for Otherworld to call on whatever help they can find. Among all of the kingdoms of Otherworld, there is one that Logan is sure he will be successful with: the land of Sevalith. This dark kingdom of brilliant towers and blood-red skies is home to the vampires of Otherworld known as the Sevalithi, and as Wolverine explains to Louise, they are more fierce than any of Earth's vampires.
The vampires of Sevalith, which itself first appeared last year in X of Swords: Stasis #1 by Jonathan Hickman, Tini Howard, Pepe Larraz and Mahmud Asrar, are not unlike those of the greater Marvel Universe. As far as they are concerned, vampires of Sevalith should be at the top of the food chain. Wolverine explains to Louise that they are far more sophisticated than the vampires of Earth, and in every way are "Superior by design."
Unlike their Earthly counterparts, the Sevalithi can give birth to their own children instead of having to turn humans via their infectious bite. They don't have any one figure at the center of their mythology like Dracula is in the Marvel Universe, and they are not controlled by their hunger for blood, something they have seemingly learned to control and cope with beyond anything that the vampires have been able to accomplish. That doesn't mean they aren't capable of the same kind of horrific acts that Dracula's ilk are so well known for, as proved during X-Force #14 by Benjamin Percy, Gerry Duggan, and Joshua Cassara. Following the battle between Storm and Death, the Arakki champion was left bleeding out in the arena, and the horde of surrounding vampires had descended on Death to tear him apart as soon as the fight finished. This wasn't the end of the original Horseman, of course, but it did leave him seemingly under the control of or indebted to the Sevalithi.
When Death is approached by Wolverine and hears of the situation, he and the surrounding Sevalithi seem more than happy to lend a hand in purging Earth of its own vampires, though that shouldn't come as any great surprise. For beings that have endured the horrors of Arakko for so long, there is no doubt that they are far stronger than their Earthly counterparts could ever hope to be on their own. The tribulations endured over centuries have done nothing but strengthen the denizens of Sevalith, and they have engineered their own power beyond the full extent of nature.
Mutants only won the tournament at the heart of X of Swords because of swift and serious intervention on the part of the Captain Britain Corps, and even then the ultimate outcome was uncertain for a time. But now that the vampires are setting themselves up to go head to head with one another, it's unlikely that Dracula's forces will get any last-second saving grace of their own.