Taking damage is a normal part of the game. At some point, everyone will lose HP — for arriving to class late or doing poorly on an assignment. It's important to work together as a team to minimize that damage. Here are some tips:
Mages can use "Mana Shield" on themselves to avoid taking damage.
Warriors can use "Protect 1, 2, 3" to help others to minimize damage and "First Aid" on themselves to recover HP.
Healers can use "Heal 1, 2, 3" and "Healing Circle" to restore HP.
If a teammate loses all their HP, Healers can also use "Revive" to make sure the teammate doesn't fall in battle (which is bad news for everybody).
Falling in battle
When teammates lose all their HP, they fall in battle and must roll the “cursed die” to come back into the game. The cursed die determines which sentence, or consequence, they’ll have to fulfill. These are recorded in the Book of Laments.