Skarbrand's ashes had not yet settled when Sanguinius already flapped his wings and flew toward the next battlefield.
His golden wings shone amid the smoke, each flap unleashing a holy storm that purified the surrounding Chaos corruption.
After eliminating Skarbrand, this great enemy of the Blood Angels, the Great Angel's mood was unprecedentedly good.
On another part of the battlefield, Leman Russ had fully unleashed the power of Wolf Gas, transforming into a hundred-meter-tall flaming giant wolf.
He rampaged through Nurgle's corrupted legions, his claws tearing apart plague warriors, his flame breath charring Nurgle daemons to cinders.
"Haha! Now this is more like it!" The Wolf King laughed wildly, smashing a Chaos Lord's head with one paw.
The Wolf King charged into the Chaos Space Marine formation as if it were empty, directly pouncing on a massive Chaos Titan and violently dismantling it.
Countless Chaos Space Marines screamed as they were torn to pieces by Leman Russ's giant wolf form. Some Chaos Space Marines who had gained gigantification abilities tried to join the fight, but in front of a hundred-meter-tall flaming giant wolf, their 50-meter heights seemed diminutive.
Leman Russ's massive claws swung, instantly shredding a gigantified Chaos Space Marine. The Space Wolves members in the rear roared in support of their Gene-Father!
On the smoke-filled battlefield, Sanguinius hovered in mid-air, his golden wings spread wide, each feather emanating pure light. He looked down at his brother transformed into a flaming giant wolf, a pleased smile on his lips.
"Looks like you don't need my help, old wolf."
Just like himself, Leman Russ was venting emotions from ten thousand years away from the Empire. He needed a slaughter right now.
The hundred-meter-tall giant wolf raised its head and let out a heaven-shaking howl, its eyes burning with ethereal blue flames gazing at distant Chaos Space Marines, Chaos daemons, and Chaos Titans—all his prey.
The Wolf King's voice rolled like thunder, his front paws slamming the ground heavily, shaking the entire battlefield.
Dozens of plague warriors hadn't reacted before being knocked askew by the shockwave.
Their bloated bodies burst with pus, yellow-green corrupt fluid splattering everywhere, yet unable to extinguish the flames burning on Leman Russ.
"For the Emperor! For Fenris!" The giant wolf roared as it charged into the enemy ranks, leaving only ashes in its wake.
His claws easily tore open plague mech hulls, crushing the pilots along with their corrupted machinery.
A sweep of his tail burst entire ranks of Nurgle daemons like rotten fruit.
Sanguinius smiled and shook his head, swinging his golden longsword. Three plague fly knights attempting a sneak attack were cleaved in two by the holy sword light before they could get close, their corrupted bodies turning to ash in mid-air.
The mighty Wolf King Leman Russ, representative of ice and snow, was now using flame-like power—it was quite amusing.
But with such a volatile personality, the Wolf King wasn't suited to frost powers; this fierce flame power better suited Leman Russ's style.
"Russ, fighting side by side once more!" Sanguinius shouted loudly.
Leman Russ didn't look back, responding to his brother with a wolf howl.
His massive wolf tail whipped left like a lash, sending a Chaos champion wielding a plague greatsword flying hundreds of meters.
The Chaos champion crashed through three ruined walls before stopping, his body twisted beyond recognition. Even with gigantification, what of it?
You're still tiny before me—die, Chaos scum!
"These maggots don't even count as a warm-up!" The Wolf King laughed madly, spewing a scorching flame breath from his mouth, charring an entire squad of Death Guard trying to encircle him to charcoal.
The plague warriors' screams rose and fell; their vaunted regeneration was useless before the Fenrisian holy fire. The cosmic phantom beast's power greatly countered Chaos willpower.
Sanguinius hovered over the battlefield center, gripping his sword with both hands and raising it overhead. Dazzling light burst from the blade, illuminating the entire battlefield.
"In the Emperor's name, purify these vile Chaos traitors!" The Great Angel shouted loudly, holy energy spreading like ripples.
Any Nurgle daemon touched by this light let out shrill screams, their bodies melting like snow under sunlight. Sanguinius spread his golden wings, releasing holy flames.
On the ground, Leman Russ seized the opportunity and leaped hundreds of meters high, pouncing directly on the enemy rear's plague artillery array.
His massive body landing caused a small earthquake; six plague cannons were crushed to scrap before they could fire.
The giant wolf opened its maw, biting down on a charging plague cannon and yanking it from its base, then swinging it like a club at surrounding enemies.
With a massive cannon barrel in his mouth, swinging it nonstop at nearby Chaos Space Marines, Leman Russ dashed on all fours across the ground.
This fighting style had a bit of a mad dog's vibe, making Rhodes, watching from afar, unable to resist commenting.
Our Wolf King truly lives up to being the King of Huskies—transformed into giant wolf form, he's basically a rabid dog.
"Hahaha, Sanguinius! Let's see who kills more!" Leman Russ's voice was filled with wild joy.
This feeling was just too exhilarating; it was as if some genetic lock in his body had been unlocked.
The Angel Primarch chuckled: "As you wish, my good brother."
The Great Angel tucked his wings and dove like a meteor, spreading them wide just before impact, the shockwave blasting dozens of enemies away.
His holy sword traced a perfect arc, sending seven Chaos Space Marine heads flying simultaneously.
The two Primarchs rampaged across the battlefield—one swift and elegant like golden lightning, the other violent and fierce like a flame storm.
Their coordination was seamless: Sanguinius handled aerial threats and ranged fire, while Leman Russ created chaos and destruction on the ground. Nurgle's legion's numerical advantage meant nothing before them; the entire army began to waver and retreat.
The two's progeny—the Blood Angels and Space Wolves—watched their rampaging Gene-Fathers with speechless expressions.
It seemed like there was nothing for them to do here. Maybe they could clean up the battlefield later? The Gene-Fathers seemed to be having a great time.
Watching the two displaying their might, Horus lounged comfortably to the side, spectating. However, he shared Rhodes's thought: Wolf King Leman Russ's wolf form really looked like a rabid dog.
Howling as he charged and tore Chaos Titans to shreds—the scene was utterly comical.
Of course, that was from the Imperial perspective. For Chaos, it was a god of slaughter.
Just then, a low, eerie horn sounded from the battlefield's edge. The ground began to tremble as some entity far more powerful than any enemy encountered before approached.
Sanguinius immediately ascended high, his golden eyes narrowing slightly. "Russ, a new enemy has appeared."
He sensed an extremely powerful Chaos force—hoping for something high-level, not the kind he could kill with one sword stroke.
Leman Russ smashed the last plague warrior with a paw, looking toward the horn's direction. "Finally, a worthy opponent."
He bared his fangs, crimson flames dancing between his sharp teeth.
On the horizon, a massive green figure slowly emerged, riding a rotten daemonic dragon, clad in rusted Terminator armor, wielding a giant scythe emanating deadly plague.
Behind him, the Death Guard's most elite plague companies surged like a tide. This figure was equally massive, a hundred meters tall, and the armor he wore was all too familiar to the Primarchs.
"Mortarion... This is impossible!" Sanguinius uttered the name in shock.
How could this be? Mortarion had already been defeated by Rhodes during the Plague Wars and captured! He was still imprisoned in Holy Terra's dungeons.
Why was he here? Could the one before them not be Mortarion?
Unlike Sanguinius, Leman Russ let out an angry wolf howl upon seeing Mortarion's figure.
"Mortarion, you dare show your face before me? Today, I'll kill you." Wolf King Leman Russ roared.
The Primarch of the Death Guard, the Father of Plagues, Mortarion, personally descended on the battlefield. His decayed features were hidden behind a respirator, only a pair of lifeless eyes exposed.
"Sanguinius, Leman Russ, and Horus—today, I come to end you." His voice was like a chill wind from a tomb. "The Grandfather sends you a gift."
Mortarion raised his giant scythe, a cloud of inky green mist spewing from the tip, rapidly expanding into a plague cloud covering half the battlefield.
Wherever this mist passed, even rocks began to rot and crumble, the air thick with the stench of death.
"Imperial warriors! Evade quickly!" Sanguinius warned loudly, flapping his wings vigorously to climb higher.
But some mortal troops and even Space Marines enveloped by the plague instantly sprouted pustules, their bodies rotting and killed by the pestilence.
Sanguinius exerted his holy power fully, and Horus released milky white light energy, finally halting this terrifying plague storm.
"You're lying—you're not Mortarion. Mortarion was defeated in the Plague Wars and captured by us. You're still locked up. Who are you really?" Horus snorted coldly.
"Hehehe, hahahaha! I am his emissary, I am the Empire's terminator, I am death itself, I am the Lord of Plagues." Mortarion erupted with even more terrifying green aura.
A horrific plague storm exploded amid the allied forces, even fiercer than before.
Leman Russ stood his ground, taking a deep breath, his chest heaving like bellows.
"Damn traitor, I'll make you taste the fury of the Fenrisian King!" The Wolf King roared, spewing a flame breath fiercer than any before.
The blue-white pillar of fire collided with the green mist in mid-air, triggering a series of violent explosions.
However, the withering plague breath was no ordinary toxin—it was a Warp virus infused with Nurgle's godly power.
Even weakened by the flames, much of the plague pierced the fire wall, enveloping Leman Russ.
"Russ! Retreat!" Sanguinius shouted urgently, diving down to attempt a rescue.
The giant wolf let out a pained howl as the plague mist contacted his left side.
The holy flames began to dim, fur rotting and falling off at a visible rate, revealing discoloring flesh beneath.
Worse, the plague seemed to erode Leman Russ's divine essence, his massive form flickering unstably—sometimes giant wolf, sometimes back to Primarch form.
"No, this is impossible," Leman Russ knelt, his voice filled with incredulous pain. He tried to stand, but his left forepaw no longer obeyed.
This scene shocked the two Primarchs present. When had Mortarion gained such power? Though Russ had just fused with a cosmic beast, his strength wasn't something the other Primarchs fused with cosmic beasts could match.
Even last time, Mortarion was said to have been defeated by his own gene-son Typhus, but the power displayed now shocked everyone.
Mortarion let out a triumphant laugh: "You've fused with cosmic beasts, but this is the new plague the Great Grandfather cultivated especially for you."
Sanguinius landed in front of Leman Russ, spreading his wings to form a barrier. "Hold on, brother," the Great Angel said softly.
Horus stepped forward this time, transforming into a nearly hundred-meter-tall Light Giant form, radiating scorching light energy from head to toe.
The terrifying light energy instantly suppressed the green mist before them, even making Wolf King Leman Russ feel much better.
"You said this power is a plague targeted at cosmic phantom beasts, right? Sorry, my power doesn't come from cosmic phantom beasts. I have an essential difference from my other brothers." Horus sneered.
"The Emperor protects." Horus prayed softly, a pure white pillar of light shooting skyward, enveloping the two Primarchs. The withering breath made a piercing hiss upon touching the light pillar's edge, gradually purified and dissipated.
The incomparably holy light illuminated the entire planet—a power that felt infinitely bright and warm, the true power of the Light Giant.
Mortarion roared in anger: "Then let me harvest your life, let me bring you into Father's garden."
He urged his daemonic dragon forward, giant scythe raised, preparing to personally slay this resurrected former Warmaster.
"I don't know how you revived, or how you escaped Holy Terra, or if you're a fake copy.
But appearing before me was a grave mistake." Horus said.
"Traitor! You betrayed the Grandfather! The Grandfather entrusted his power to you."
"No, I merely corrected an error. I was just used by those four." Horus didn't argue, speaking in his Light Giant form.