"It's impossible, there's no way to win at all" Chromie was sent flying into a natural pile of rocks. If he didn't reveal the two authorities that the sprout of the Moon Tree had retrieved and used the corresponding techniques, he wouldn't be a match for this nearly completed 100-headed beast at all.
In the past, Chromie had used Sacrificial Magic to improve his constitution, then his elven bloodline was activated and turned into a half-elf, and he had diligently trained himself for the past 10 years to fully exert his elven potential, but the result of all of that was only equivalent to reaching the second stage of release.
Chromie was nothing but a [Protagonist] who was born naturally insufficient. The will of the Moon Tree didn't have many resources to grant him at all, the only preparation he had was the grand banquet of Dim Silence Envoy, but even that was already consumed by Negary's devout worshipper, Darr.