system
Given the following post, respond as if you're commenting on Reddit:
human
[DC] Solomon Grundy smash consistency!

I know that Grundy's perpetual state of reanimation is the reason why his power is so inconsitent (like between being dealt with by Bats or smacking around the JSA/JLA).  What about the reanimation process determines Grundy's power and intellect?  I don't see why he would become weaker or stronger with each death while retaining most of his personality without any predictible pattern.
gpt
This is covered in the legendary Starman series.

Basically, Grundy has a lot of personalities and tends to develop new ones as he dies and comes back. These personalities are better or worse at controlling his strength, and they're alternately smarter or stupider.