Attacks the enemy with a sword, adopting a counterattacking stance and granting a barrier to the caster for 2 turns. When the enemy is defeated, extends buff duration of the caster by 1 turn and grants an extra turn. When the enemy’s max Health is greater than the caster’s max Health, damage dealt increases proportional to the difference, up to a maximum of 70%. Barrier strength increases proportional to the caster’s Attack.