Sirius was barely standing, his body trembling from exhaustion. He had finally killed the echo, his claws piercing through its tough flesh, reaching its heart and crushing it. The struggle didn't end there—he had to hoist the echo's corpse over his head and hurl it toward Nathan. His vision blurred, his eyelids heavy as his body felt like it was sinking into quicksand. His joints screamed their grievances, his breath ragged, and his thoughts incoherent. Yet, amidst the chaos in his mind, one thought rang clear:
'I've got to beat this bastard.'
The thought consumed Sirius, and his bloodshot eyes glinted with a golden fury. His entire body seethed with a maddening energy as a low growl escaped his throat. The growl grew louder, more ferocious, until it erupted into a full-blown roar that shook the arena.