Killer Whale O'Brien's attack did not kill the Demon Tree, so he went to bombard those roots again.
But the roots were numerous and spread extremely wide, covering both the ground and underground of the entire farm.
And they continued to spread, with the farthest reaching roots already extending two thousand meters away.
"Hmph, a whale herd hunt!"
O'Brien's biological field compressed down, and a whole group of proxy killer whales appeared.
They leaped and dove, flipped and turned, even displaying their golden battle bodies, crashing into the roots of the Demon Tree.
For as many roots as there were, O'Brien conjured an equal number of killer whales.
Each wrapped in a golden battle body, they coordinated with each other, collectively bombarding and tearing apart the roots.
Every one of these proxy killer whales possessed a fair amount of intelligence, indistinguishable from real killer whales.