2 Athena's Aegis Heroes: Each hero receives a shield that absorbs damage up to 20% of their maximum HP, lasting until the end of the battle.
3 Athena's Aegis Heroes: Starting with the second round, the hero with the lowest HP at the beginning of the round receives a shield. This shield absorbs damage up to 10% of the hero's maximum HP and disappears at the end of the round. (edited)