Board Thread:4. General Discussion/@comment-26411370-20151021064939/@comment-124.83.16.225-20151113091435

The antlers might be a special case. We know for a fact that strong monsters on that level are so saturated with magic that even touching or tasting their blood could kill someone, such as the Dragon Emperor.

It's reasonable, though, to think that they may have inherited the strengthening aspect of his Absorption ability, even if they can't absorb skills. But it's hard to tell since Noir Soldier essentially has the same effect and since it's one of the factors Rou hypothesized for why the goblins in his community were strengthening so quickly (aside from all the combat techniques he drilled into them in training and from the experienced gained from defeating strong foes they wouldn't ordinarily be able to defeat).

I suppose this is just one of the more open-ended aspects of the story, like Rou wondering if Kichi being able to damage him during their first training session after ranking up into an Overlord and Gigaminoterios respectively was either due to Kichi's special skills (God-Killing Thunderflame, or something like that) or his Dragon Slayer title (which everyone received after beating the Dragon Empress). Monsters might naturally be able to get stronger from eating strong monsters, Oro and Argent may have inherited Rou's Absorption ability in part, or it may even be both. Mysteries!