Fairy Tail: Strongest Creature

The sky convulsed with thunder.

Atlas Flame's roar split the air.

"Enough, kid! Don't force my wrath further!"

But Natsu paid no heed, pressing atop the wyrm's brow and devouring its fire with reckless delight. The dragon thrashed against buildings, shattering walls as its own flames were consumed.

Above the plaza, Su Yan in his Azure Dragon form faced a circling quartet of great wyrms.

"The Four-Headed Siege?" he called out, unease dancing in his eyes. "Fine—show me your strength!"

A savage grin curved his snout. Su Yan's dragon scales gleamed as he flexed claws honed like blades.

Motherglare, the King-Kong Dragon, charged headlong—massive fists pounding the air. Su Yan met him blow for blow, horns clashing with the dragon's knuckles in a thunderous collision. Neither yielded.

Masha's roar rent the sky as his maw opened wide; Su Yan struck back, deflecting the blow and sending the beast crashing into a distant hill with such force that an entire mountainside crumbled.

The rock-skinned wyrm lunged next, jaws snapping at Su Yan's tail—but a sweep of the dragon's whip-like appendage sent himself tumbling, stones spray-shattering from his hide.

Zirconis the Emerald Dragon loosed a torrent of raw magic. The blast struck Su Yan's flank, drawing an anguished cry even from his draconic form.

Seizing the moment, Western Saranna slammed horns into Su Yan's side. Horns met scale—only to find the strike repelled as Su Yan's wound-darkened scales hardened further. With a roar, he countered, punching the white wyrm so hard it rolled tail-over-head.

Enraged, Scissor Runner braced and gathered a howl of elemental fury: her shake-earth roar built into a sphere of pure draconic power, set to obliterate Su Yan. But the Azure Dragon flared nostrils and answered with his own scorching breath. Their energies collided overhead in a blaze of light that bathed the entire plaza in fiery brilliance—then Scissor Runner's roar was consumed, and she fell like a blazing comet.

Below, mortals watched in stunned silence. From the royal dais, King Thomas whispered hoarsely, "People and dragons—locked in battle. This…this is the legendary Dragon King Festival, when calamity falls upon both man and beast."

Around them, every scream of triumph and agony carried on the blood-tinted wind. The ancient disaster had returned—and at its heart stood Su Yan: the human who had become dragon, and now led the charge in the world's greatest conflict.