this is based on my replies about the encyclopedia, which has conflicting information on this.
is healing water based?
frog and marle are healers, so it fits there. Robo uses shadow, as well as fire and lightning in his techs, so why not water?
the only exceptions to this are Chrono's Life and Ayla's Kiss. since Lightning is really Sky/Heavens, it's not that much of an exception. also, Slash is more wind based than purely lightning, and a wind sprite represents Chrono's branch of magic.
Which leaves Ayla's Kiss. also, is Ayla's Charm physical or status effecting?
different guides have different interpretations of this. I figure that if there's anywhere to ask very specific Chrono Trigger questions, it's this site.
mods: if this belongs in enhasa halls, feel free to move it there.