Birom signaled to the other teams to start the attack when the roots came up from the ground and summoned more Dryad Calamities. The battle began outside the wall, and he focused the fight here. He and his core team were in the front.
The Dryad Calamity was also good in its elemental magic. The difference was the elemental they mastered. The calamity was good at their dark fire, applying the fire in their attack.
The tree calamity spawned the dryad non-stop as if the tree could spawn them with no limit. Birom focused on the outside, afraid that the other teams might get overwhelmed.
Fortunately, the highest rank was Rank 8 Dryad Calamity. There was only one Rank 8 in three hundred Rank 7. The calamity horde was dominated by Rank 6 and Rank 7.
That was when he realized that the calamity outside was not as dangerous as he thought. The other teams should be able to handle them without him and his core team.