Death2_point_0

Dang they didn't come up with my idea/story I commented last line.

They probably going to come up with: The "spear" was wielded by a immortal chasing or chased by the beast, but the immortal didn't make it, the "spear" losing most of its abilities/being sealed. The immortal-level "spear" having sentience brings them to the shell of the beast wanting revenge.

"Just one"

panties?

Maybe it's not a pseudo one.

Or... "it" is concentrating the radioactivity for one big boom.

"While in crystal form is radioactive" (or was said something similar to that) Guess the guy didn't check for radioactivity. Probably doesn't know what it is due to scientific progress being botched due to people focusing on Cultivation .

Because he grows each time he does it. And in a spot too small it might hinder his growth.

Just be careful of the underground lava pools.