In this one-off story, the Covenant from Halo comes face to face with The Undertaker from WWE, only Undertaker is not being played by anyone. No performance stunt, no "Mark Calloway," none of that. This is basically the character himself who represents everything Calloway showed in his portrayals of the "Undertaker" character.
Basically, this is a true, supernatural force; something that is a pure personification of the character Calloway played on stage. This is NOT the man who played the Undertaker.
With that out of the way, enjoy the story!
In the time during the war with the UNSC, Covenant forces were getting ready to mount a coordinated strike against one of their flagships. Thanks to many reinforcements, they had an entire fleet ready to charge into battle.
Suddenly, dark, smoke-like fog enveloped the space in front of them, blocking their path. There was some sort of dark lightning in that smoke. Covenant forces were just starting to panic in the confusion when…
*GONG*
A loud bell-like sound rang through the entire fleet. And soon, everyone was silenced in fear.
*GONG*
It rang again, this time louder.
The fleet leader, an Elite Commander, was barely able to say anything when druids started coming out of the fog on demonic-looking rocks, chanting some sort of hymn.
The fleet did nothing. Its soldiers just… stared at them. It never even occurred to them that these druids were summoning something that would ensure the fall of the fleet and the failure of the next attack…
…until it was too late for them to act.
*GONG*
The sound rang out once more, but with lightning shooting out of the fog at the exact same time.
A figure finally emerged from the shadows of the fog. He was a man, wearing a long coat, belt-buckled pants and a fedora hat. He also wore gloves that completely covered his hands, apart from the fingertips.
He looked up at the Covenant fleet, as if to say, "Welcome to true Hell." Then, he bowed down and put his hands on his fedora as he prepared to take it off. After a short delay, he finally removed it, showing his blank, white eyes as lightning struck the flagship of the Covenant fleet.
The force of the blast was enough to completely destroy a part of the ship, which soon blew up and took much of its surrounding ships with it.
The figure removed his coat, showing several demonic-looking tattoos on his arms. He made a gesture akin to slicing his own throat off, while showing his white eyes again. This caused another lightning strike to occur, hitting many ships in an entire blast. He put his hands into the air and fired lightning at the rest of the Covenant fleet, finishing them off before they could react.
When the ordeal was done, he put his coat and fedora back on and disappeared back into the fog, never to be seen again.
No one knows who or what that man was, whose side he was on, or whether he would return. There were many nicknames for him, such as "The Deadman" and "The Phenom." However, everyone agreed upon one name that could be used without argument.
It was the name of Damnation. A name that had been transcribed in legends for centuries. A name that would strike fear into the hearts of almost all known life in the Universe.
For the rest of time, he was simply known as…
The Undertaker.