if i had to take a guess, i'd say that every element is magic based, and maybe some of the character specific techs do damage based on attack power or strength.
surprisingly i found no FAQ's or anything explaining this part of the game, so my question is, ARE there any elements that damage based on physical power or simply just do a fixed amount of damage? because im really at a loss here as to how to allocate a character with low magic, are you just suppose to give them consumable elements or something? i dont think i've acquired any yet, but was thinking maybe status inflicting ones would be good for them as well.