Tikoh (Summer) is best used as a backline support character who can also help the team recover from an enemy special attack that has knocked out a character.
Lakeside First Aid1-turn cut to Earth allies' debuff durations upon chain burst activation. (Takes effect even when Tikoh is a sub ally.) and Prescription for a VacationAdd 1 blue potion at battle start. (Takes effect even when Tikoh is a sub ally.) both function just as well when Tikoh is in the backline.
FleboclisiFully restore Earth allies' HP. and PrescrizioneRevive an ally with 50% HP. have cooldowns too long to be of practical repeat use as a frontline character, and FarmacistaRemove all buffs from all foes. (When used from 10th turn onward: Earth allies also gain buffs equal to that of foes' buffs removed.) (Can't be recast.) cannot be recast at all. These skills are, however, great for helping an Earth team recover from a particularly hard hitting special attack that has knocked out an ally and brought Tikoh to the front line.
Lakeside First Aid1-turn cut to Earth allies' debuff durations upon chain burst activation. (Takes effect even when Tikoh is a sub ally.) is also useful for raids like Diaspora which inflict debuffs which cannot be removed, but can be shortened.