Monster vs Monster

[A few moments before]

Shifting from his human form to his monstrous form, the transformation is barely complete before the monster lunges forward with terrifying speed. Mid-change, Its blood-soaked tail whips violently, smashing into Legion, sending them hurtling into the nearest building. The structure crumbles upon impact as his transformation halts abruptly.

[Transformation error!!] 

Blinking his eyes open, Legion is greeted by the blinding red haze of his own blood staining his vision. The world around him spins, the only thing keeping him tethered to reality the constant ding of the system echoing in his mind.

W...What is happening...

Before he can react to his predicament, the creature lets out a deafening roar and charges toward him on all fours, its speed unmatched. In a fluid motion, it leaps into the air, landing on the wall where he's embedded.