
How Capture Power Works
So this comes up often in comments here and in /r/palworld. This infographic (I generated with AI) does a fairly good job at explaining the gist of it though.
The math works out such that your Capture Power from all sources should be near the target Pals level in order to have weakening it via reducing its HP to matter the most.
Even if you are able to weaken a level 55 anubis to near 1 hp, if you try to capture him with a basic sphere your capture power will be so low that the decreased HP has less of an impact on the formula. Likewise if you throw a hypersphere at a level 2 lamball HP also doesnt matter here and has little impact on the catch rate - Although it wouldn't matter as your catch rate would be near 100%.
But there you have it. The point is weakening a pal only makes a difference when the target pals level is maybe +/- 5 levels of your capture pal.