GrayShadow's 'Giving Gogo Magic' code

; Section 2: Teaching Gogo Magic
org $C2558C
CMP #$0D              ; Branches for Umaro and above rather than Gogo and up.

Hmm, but wouldn't these CMP become $0E if he wanted Umaro instead of Gogo? Since Gogo is character 0C, and here the CMP is 0D which is one after, going in order for Umaro they would become 0E according to my logic.

As for natural magic not working for Edgar, you might need to change this as well in the 'RelmRecruit' section:
CMP $1608,Y      ; Check against current level.

To CMP $1604,Y (for Edgar), as it appears to be using Relm's ID there...ALTHOUGH, I might be wrong about this, I'm not sure do to my inexperience with assembly. So you should wait for some conformation about this.