Why was Death-Attribute Charm having an effect on plant-type Ents who didn’t have death or cemetery in their names?

It was unclear, but there was no denying that it was affecting them.

But Appraisal revealed…

【Rank: 4, Name: Immortal Treant, Summary: Mutant Treants who have been showered in death-attribute Mana as seeds. However, they do not possess evil natures. They are resistant to all kinds of conditions, physical attacks and magical attacks, and they possess excellent self-restoring abilities.】

In other words, they were Ents that were incredibly difficult to kill.

“Well, I suppose we have more fighting forces and an additional source of food,” said Vandalieu.