@Sol ok. If the Debuffer in your team can essentially reduce the enemy's damage to 0, would you still need a healer? If the Debuffer in your team can supress the enemy's stats to make them 0 for the duration of the fight, then there would be no damage. Plain and simple.
Don't put me together with those shallow swamp dwellers who enjoy fan service and cheesy harem. I am someone who looks beyond simple harem and comedy and enjoys a good story.