[ASM & Hex✓] Crystal AI Hex editing?

I want to edit the trainers AI in pokemon crystal by making those trainers use heal items? I see in crystal kaizo sometimes the trainers constantly heal over and over by full restore, and I would like to know the pointers I need to change to do this?

I am not new to hex since I am computer engineer in school.

I can't give you hints on what to do exactly to accomplish this, but I guess you could make them have an infinite amount of the items they carry (by never "removing the item from the trainer" when it uses it (= not writing 00 to the item's location in ram?)).

The best way to do this anyhow is to fork pokecrystal disassembly (https://github.com/pret/pokecrystal), and implement this change by re-coding some of its files with a text editor. Finally you can compile the files of disassembly into a rom file.