WARNING: The following contains spoilers for Wolverine #10 by Benjamin Percy, Adam Kubert, Frank Martin, VC's Cory Petit, and Tom Muller, on sale now.

The Marvel Universe is full of the detritus of the superheroes and supervillains who've defined it. As Wolverine just found out, many of the costumes, weapons and tools from Marvel history ended up for sale to the highest bidder at underground auctions. The latest of these, hosted by the shadowy Legacy House, has been moving in on the mutant memorabilia marker.

And when Logan and his old Team X partner Maverick break into the Legacy House's warehouse in Wolverine #10, where they pass by by the physical remains of Onslaught, one of Marvel's most powerful villains.

RELATED: Wolverine's Forgotten Daughter Finally Gets Her Revenge on Logan

Wolverine Onslaught Maverick Warehouse

After Logan and Maverick shoot and slash through the Legacy House's auction, they infiltrate its warehouse, which is filled with a wide array of weapons and tech from almost every corner of the Marvel Universe. As they battle the armed guards who confront them, the armor of Onslaught can be seen hanging behind them.

Onslaught is an immensely powerful psionic being who was created from the merged consciousnesses of Professor Xavier and Magneto. After Magneto stripped the adamantium from Wolverine's skeleton back in 1993's X-Men #25 by Fabian Nicieza and Andy Kubert, Professor X launched a vicious psychic attack on his longtime rival. Magneto was left in a vegetative state, but soon his own darkness left its mark on Xavier's psyche, and Onslaught was born.

Onslaught initially hid within Xavier's mind, before he grew powerful enough to project himself into the physical Marvel Universe, starting with John Ostrander, Terry Kavanagh and Steve Skroce's X-Man #15. When Professor Xavier was freed of Onslaught's control, the being became pure psionic energy housed within his armor, which also held Xavier and the young Franklin Richards captive.

RELATED: Wolverine: Cosmic Ghost Rider Teases How Logan Will Really Die

Hulk fighting Onslaught

Throughout the 1996 crossover that bears his name, Onslaught took on the X-Men, the Fantastic Four and the Avengers as well, where he only seemed to grow more powerful with each encounter, thanks in part to his incredibly durable, ever-evolving armor.

During the height of the conflict, Jean Grey temporarily disconnected Bruce Banner's psyche from the Hulk's mind, leaving the green behemoth and his rage completely unbridled. In Mark Waid, Scott Lobdell, Andy Kubert and Joe Bennett's Onslaught Marvel Universe,the Hulk was finally able to put a dent in Onslaught's second armor, which became a crack through which most of the Avengers and the FF charged into to overwhelm the villain.

While none of Onslaught's returns have been as memorable as his debut, the fact that Onslaught's armor ended up in a dark corner of a black market warehouse after so many years is almost unbelievable. With the frequency that people and things disappear and reappear in the Marvel Universe, Onslaught, or at least a piece of him, was bound to show up eventually, and Wolverine burning down the building it's housed in certainly won't be enough to keep it from doing so again sooner than later.

KEEP READING: Wolverine Reveals Which Part of His Body Grows Back Last