He then called Aegirion again, his blade, moved back to him and he started kicking it. Samuel was aware of the strong underwater currents and the shockwaves from the Hydra's heads, so he adjusted his essence flow to his leg. He kicked his blade with such force that it broke the sound barrier, hitting the Hydra in the stomach. But he didn't stop there...
He continued to kick his blade multiple times in the same spot, while dodging the Hydra's heads... Each impact jolted him, showing the creature's immense strength. The water around where he struck churned violently...
As he delivered more kicks, a faint, sickly Greenish-blue glow appeared from the wound... The Hydra had started regenerating again. Samuel realized he couldn't simply overpower it arcane essence flow... he had to kill it instantly with it healing ability, same as the mermaid...