(keeping character health at a reasonable level if enemies gang up on them, etc.)
The fact that "healing after a battle" counts for strategy in PS2 shows how... devoid of strategy PS2 is.
I like how during the first part of the game you don't really have nearly MP to cast spells with a reasonable frequency so magic's sort of non-helpful outside of healing.
Also PS1 played with armor resistance at a couple of points, which led to some neat Law of Miyamoto moments like getting the mirror shield to fight Medusa (or you could just come up with a weird strategy involving that rope spell. Oh my god, options!).