Unfortunately if the Ruby is not on Cyttorak, it doesn't function,
so Juggs power supply is cut off,
and he gets the Ruby blasted out of his grip by Nova:
When fighting an army battalion,The Juggernaut slammed his fists into the ground with such force it created an earthquake that ripped through the entire valley and brought a hill crumbling down on them. --Uncanny X-Men #33
took the Fantastic Four's Thing down for the count in seconds with just 3 successive blows. Thing would arise,only to fall back down unconscious. --Secret Wars II #7
sent Thor hurtling across the skies and then through a store wall with a casual backslap. --Thor #411
When hit so hard by Rogue of the X-Men that the shockwave from the punch shattered every window of the street,The Juggernaut simply stood there looking down on her with his arms crossed. Then with a mere backhand knocks her seemingly unconcious. --Uncanny X-Men #218
After the Hulk had absorbed more radiation making him more powerful than before, The Juggernaut matched him in a direct test of strength. The opposing forces of their grapple threatened to collapse the entire X-Mansion. --World War Hulk:X-Men #3
Collapsed an entire skyscraper(possibly a World Trade Center tower) with a ram of his shoulder. --Spider-Man #16
Engaging fellow exemplar Stonecuter in a toe-to-toe slugfest,the punches they traded to one another caused earthquakes and was said to be the greatest fury ever unleashed on Earth. --Juggernaut:Eighth Day
Facing the Stranger who'd grown to about 50 feet tall,The Juggernaut lept up and toppled him with one punch --X-Men Forever #6
Stripped to only a fraction of his strength,he still is strong enough to easily choke Rogue with one hand while fending off Colossus with the other. --Marvel Team-Up #150(it was stated in the Marvel Handbook that both Tom and Juggernaut actually had less than a half of The Juggernaut's power as they had assumed)
The Juggernaut nearly drowned the Hulk by forcing Hulk's head underwater. Hulk had to use silt from the riverbed in Juggernaut's eyes to make The Juggernaut release his grip on his neck. --Hulk #402
Despite having suffered a significant power loss,The Juggernaut's diminished might was still enough to lock up with Prime. The Juggernaut is next seen slamming Prime through a wall. --Exiles #4
Tore through a wall 50 times the tensile strength of battleship steel as though it were a "a thin layer of plywood". --Uncanny X-Men #12
Drained of power to the point of emaciation, a sickly Juggernaut was still strong enough to rip off and wield the entire corners of buildings as giant weapons. --Uncanny X-Men #361
The Juggernaut has withstood even Thor's godforce blast which caused Galactus to flee for his life on one occasion and shattered the prime Celestial's protective dome on another. The Juggernaut took a steady stream of it without harm. --Thor #412
Took a direct blast from the new-look Cyclops that was described by him as being able to "rip a small planet in half" with a smile as The Juggernaut's only reaction. --Cyclops #1
The Juggernaut proved totally impervious to the adamantium claws of Wolverine. --Uncanny X-Men #102
The Juggernaut was immune to even the bludgeoning power of the Hulk. And after taking the Hulk's blows repeatedly asserts that the Hulk could never stop him. --Hulk #172
When a consciousness from another dimension triggered a homing instinct in his head, the Juggernaut in a possessed-like state tapped more and more of his power until he began punching through time and space to get to it. He would later grow to the size of a large building. --X-Men #88
When Storm gave the Juggernaut the best bolt she could muster at the time, the Juggernaut took it, then rechannelled the bolt back at her through his hand. --Uncanny X-Men #102
When persuing Beast across water the Juggernaut's magic prevented him from sinking. --Amazing Adventures #16
When completely sunk in quicksand against the Hulk, the Juggernaut somehow rose from the quicksand and pummelled the surprised Hulk senseless. --Incredible Hulk #402
Twice when lifted from the ground and held in midair by Jean Grey,The Juggernaut proves unstoppable by continuing to advance toward her irregardless. Despite having no physical footholds or leverage. --Uncanny X-Men #12
Are those feats enough?Juggernaut is overrated?If anything he is underated in this forum.He beat Thor countless times like a child but in every Juggernaut vs Thor thread most people have him losing.Learn about a character before you keep saying he or she will lose.