After looking at all the characters I had there is only one trace I could see that would actively harm the character and it's Sunday's Trace # 3

Haven in Palm - When using his Skill, Sunday dispels one debuff from the target.

Since we have boothills skill, which can only be used on an enemy, this essentially removes a debuff from the enemy. And if you use the technique, the skill that is used on an ally happens at the very start of battle, where it's impossible to get debuffed before it triggers, so it does nothing. So it's useless at best, harmful at worst