Twilight had given up on trying to stop discord,and had gone grey showing she had fully given up,and discord loved it.
He was having such a fun time mesing up these ponies worlds and twisting there friendship into something evil,but he did not expect when his chaos caused rifts to tear and open in the universe,and something fell in,something that felt evil.

A pure black vortex had opened near twilights libary,it seemed to suck the very light from around it and a black mist like ink in water floated around it.
Twilight looked up at it,thinking it was discord messing with her again she rolled her eyes,but gave a look of horror at what happened next.
The vortex wobbled and a large figuer fell out of it.

It was The Lich King,or just the lich,he looked like a seven foot tall skeleton with a rotting face with two large curved horns,he seemed to be wearing a grey cape and cloak,he had no eyes but green dots in his eye sockets served as eyes.

The litch King looked around him,before spotting the grey twilight and started to walk twords her.
Discord having seen this teliported the Litch outside to his throne so he could formaly introduce himself.

"Why hello there! I am Discord The Spirit Of Chaos,and who might you be?" He said sipping from a glass of chocolate milk,he drank the glass and not the milk before throwing it behind him causing it to explode.

The Lich said nothing as he stared at Discord before green flames light up in his skeletal hands and his glowing eyes flashed a brighter green for a second while his cape fluttered in an unseen wind.

Discord chuckled at this. "So ya wanna go against the big guy eh? Im warnin ya, you might wanna back off before you get to hurt."

At this The Lich King gave a bone chilling laugh with a little wheeze thrown in there,before he suddenly stopped and a green glow filling his whole eyes.
Discord watched as everything around him faded to black and all he could see was the litch. "What is this?" He said looking back to the Litch.

The lich King began to talk to discord,but without moving his mouth. "This is your end child,Now I have a new world to destroy and you will be the first to perish." He said,despite the fact he was undead his voice sounded normal but with a sinister tone always present in it.

Discord broke out into laughter. "BWAHAHAHA! and just who is it you think you are? Im DISCORD you have no possible hope to fight me and win." He said as his laughter died down.

The Lich King gave a laugh of his own. "I? I am death and I have come for you discord,there is only darkness for you,and death for your people." The Lich said as he shot green flames at Discord,to which Discord mealy teleported two feet to the left.

"Nice try but you still cant beat me no matter how much fire you shoot at me,my turn." Discord said as he snaped his claw,only for nothing to happen much to his confusion. "What the?.. you should be banana pudding right now." He said with a bemused look on his face.

The Lich King said nothing and shot forward grabbing Discord's throat as the hand holding his throat shot up with green flames.
Discord's magic kept healing him every time his flesh was burnt off,but it was getting harder so he blew on his lion paw and it grew comically large before be sucker punched the Lich like popie would punch a badguy after eating a can of spinach,The Lich went flying and crashed through a house,the pony inside screamed,but the Lich King payed no mind to the equine as he stood back up and calmly walked out of the rubble and wood.

Discord was impressed since that blow should have turned his opponent to dust,he was wondering why his magic wasent working right the way he wanted it to,before he came to the conclusion that this being must have had a super good magic resistance or its magic was opposite of his enough to the point he couldn't directly change the Lich in any way,shape or form.

Discord watched as the Lich King turned to a random stallion that had been standing still in fear and grabbed him before the stallion gave a scream and started withering away into dust and the Lich King said nothing as he turned to discord.
The Litch shot forward and once agan caught Discord by the throat,and his other hand reached up and snapped off Discords goat horn before he stabbed it into the Chas spirits chest,Discord screamed in pain as the Litch tried to gut him with one of his own horns before he stopped and gave a sinister laugh that even put King Sombras to shame. You speak of being unbeatable and having enough power to turn me to pudding,let me show you MY power The Lich said as he opened his mouth and a black mist came out of it,as soon as Discord breathed it in be felt himself turning to dust and regenerating as an alarmingly fast rate,normally he would have no problem just growing a new limb or organ,but this black mist the Liche's 'death breath' was over powering his immortality and with a weak punch to the Lich's face discord turned to dust and blew away in the wind.

The Lich looked at this new world he could destroy like he had destroyed humanity and Ooo.
The Lich King had first killed off most of humanity with his mutagenic mushroom bombs,then drained the plants life force so he could finish his work and kill off the rest of the planet like he had tried to so long ago.
He managed to do it after he reached his well of power and threw in the gems of each princess crown into the boiling green goop,and killed off the rest of Ooo,and now he was in a new world he could destroy and get just a little further to his goal of destroying all life.