Sargeras channeled the fel power within his soul into Medivh's body. Instantly, Medivh's physical form was utterly corrupted, his appearance twisting to more closely resemble Sargeras.
"Since you refuse to join my crusade, you will be crushed, insect!"
The demon-like Sargeras roared, and a burst of green light erupted from him. A massive shockwave of fel energy slammed towards Galen!
The force buffeted Lothar and the others, their robes whipping violently. They braced themselves against the immense power.
"Galen!"
Galen leaped, gripping Trol'kalar with both hands, and swung the troll-slaying blade.
"Taste my blade!"
Boom!
The fel energy struck Galen, but instead of being vaporized, he interrupted the spell and struck Sargeras!
Galen landed before Sargeras, Trol'kalar embedded in the demon's left shoulder.
Sargeras raised his left arm to block, but it was severed from the elbow down. Medivh's severed forearm lay on the ground.
"Insects! You've actually wounded me!"
Sargeras roared and struck Galen with his right claw, sending him flying. He ripped Trol'kalar from his shoulder, tossed it aside, and raised his right foot to crush him!
Bang!
The ancient magical longsword shattered under Sargeras' foot.
"Crap! I'm done for! My old man is going to kill me!"
Galen's words broke the tension. The others noticed a faint golden aura surrounding him, which vanished as he rose.
Galen had drunk a Lesser Invulnerability Potion before the attack. The Goblin Shop's potion granted seven seconds of invulnerability.
With Divine Shield and the potion, Galen believed he could survive almost anything.
Sargeras tried to heal his shoulder and regenerate his severed hand with fel energy, but the process was slow.
"What did you do? Damn insect!"
"Heh heh, guess!"
Galen and Lothar knew the reason. Trol'kalar unique ability disrupted regeneration. Even a small wound from the blade could negate a troll's healing.
Galen had used Trol'kalar to sever Sargeras's arm, temporarily preventing regeneration. But it was a temporary effect.
"Attack now! Take advantage of this opening!"
Lothar charged, the respite allowing him to recover.
Durin, healed by Aragorn, threw his Storm Hammer at Sargeras!
Galen mourned his broken sword, already planning to loot Karazhan to recover his losses.
Aegwynn, waiting for an opening, unleashed a barrage of arcane missiles at Sargeras's injured shoulder, widening the wound and exposing the bone!
Staggered, Sargeras was then struck by Durin's Storm Hammer. He raised a fel shield, but it shattered like glass!
Sargeras waved his right hand, swatting away the Storm Hammer, and prepared to unleash a devastating fel spell! He would no longer hold back, enraged at being wounded by an "insect."
A brief incantation sent Lothar flying. A Shadow Bolt struck him, and the Great Royal Sword skittered across the floor.
Sargeras began to chant again, preparing a powerful move, but Kael'thas and Rommath combined their arcane powers to counterspell him!
Using the principle of Arcane Torrent, they disrupted Sargeras's spell, causing a surge of chaotic fel energy within him!
The backlash prevented Sargeras from casting. In his own body, this would be a minor issue, but Medivh's body was far more fragile!
The cracks on Medivh's body widened, threatening to burst open. Sargeras focused on suppressing the chaotic energy to prevent Medivh's body from self-destructing and his soul from being banished back to the Twisting Nether.
Human mages were physically weak. Medivh, despite being a powerful Guardian, was still vulnerable.
Medivh, while not indulging like other nobles, had a history. He had slept with Gul'dan's assassin, Garona, to control her and father a child.
"A civilized explanation," Galen thought. "Who else does that? Perhaps Medivh preferred exotic partners?"
Where was Garona?
She had been hiding, waiting for an opportunity.
Garona silently appeared behind Sargeras, her dagger inches from his neck!
"Perfect!" Galen thought. "If Garona assassinated me, I wouldn't even notice. She's about to unleash a deadly combo!"
"I need anti-assassination gear," Galen decided.
Garona's dagger moved, but Sargeras turned, grabbing her wrist. His left hand, now with emerging bone spurs, impaled Garona!
"You betrayed me too, you cur!"
Sargeras twisted his left arm, causing Garona to scream.
"Pfft! You're a shameless bastard!" Garona spat blood at Sargeras!
Sargeras dodged the blood.
"You betrayed Gul'dan, and now me! Your life is a web of treachery. You thought you found a home? No, you just started a new betrayal! You will never know peace!"
Sargeras unleashed a beam of fel energy into Garona's forehead and threw her out of the dome's window!
As he did, Lothar, wielding the broken blade of Thoradin's Sword, lunged at Sargeras's chest!
Sargeras grabbed for Lothar's head, his fel claws poised to tear through his skull!
Lothar, resigned to death, aimed to impale Sargeras and create an opening!
"For Stormwind! For Medivh!"
Lothar roared, his hand gripping the broken blade.
But Sargeras faltered. The green flames in his eyes flickered and turned arcane blue!
Medivh's soul, not extinguished, launched a final counterattack!
Lothar recognized the change.
"Medivh!"
But Medivh's control was fleeting. Sargeras's fel energy surged again!
Just then, a figure flew out of the Curator's pit, striking Sargeras!
Aegwynn!
She chose to sacrifice her soul to save Medivh's!
With three souls vying for control, Sargeras's body convulsed!
"Now!"
Lothar, steeling himself, thrust the broken blade into Medivh's chest!
The damaged body convulsed, and Sargeras lashed out, his demon claw tearing into Lothar's chest.
Lothar recoiled, barely alive. Five bloody holes marked his chest.
As Lothar stumbled back, he saw a sword emerge from Sargeras's chest: his own Great Royal Sword!
Khadgar, recovered from his fall, had seized the fallen blade and ambushed Sargeras!
Quel'Zaram, a blade of righteousness, pierced Sargeras's heart!
Was it over?
Even as they rejoiced, Sargeras remained active. He cast a spell at Khadgar, but the young mage seemed unharmed!
Khadgar twisted the longsword, destroying Medivh's heart. As he did, he aged rapidly, his hair turning white in an instant!
Then, a voice rang in Galen's ears!
"Don't just stand there, Galen, hurry up and finish him!"