The Siege of Despair      

As Xavour, the Plague Bringer, writhed in agony under the relentless assault from everyone, a profound transformation unfolded. 

The dragon's roars shifted in tone, resonating with a newfound ferocity, as if a primal force had been awakened within.

A surge of malevolent energy enveloped Xavour, and its scales took on an even darker hue. The toxic greenish flous emanating from its body intensified, creating an aura of impending doom.

With an ominous growl that reverberated through the Castle of Doom, Xavour finally entered Berserk Mode. Its movements became more erratic, its attacks more relentless, signaling a heightened state of aggression and power.

The once calculative and strategic beast now acted on pure instinct, unleashing its wrath upon everything in its path.