Isabella

When a battle starts, Isabella selects the frontmost allied hero as her companion. If the companion is defeated, Isabella will select a new one. Whenever the companion receives a stat boost to ATK, ATK SPD, Haste, Phys DEF, Magic DEF, or Vitality, Isabella gains a permanent stack of spell note corresponding to that stat. Each type of spell note can stack up to 3 times. Note that stat boosts granted by Isabella's spell notes themselves do not trigger additional stacks of spell notes. When Isabella casts her Ultimate, she increases her companion's ATK by 15% and their Haste by 15 for 6s. Additionally, each spell note stack Isabella carries will increase the companion's corresponding stat: ATK, Phys DEF, and Magic DEF: +15% per stack. ATK SPD, Haste, and Vitality: +15 per stack.

Isabella targets only her companion with this skill, healing them for 340%ATK HP and then dealing 150%ATK damage to enemies adjacent to her companion. 100% of the damage dealt is also converted into extra healing for her companion.

After her companion is affected by control effects for 5s, Isabella can make them unaffected for 2.5s. This effect can only trigger once every 5s. Additionally, when an enemy hero deals 350%ATK damage to her companion, Isabella reduces that enemy's ATK by 60%ATK for 5s. This effect can only trigger once every 5s.

Increases Assistance by 30 during battle.

When Isabella casts her Ultimate, she also debuffs the enemy hero who has dealt the most damage to her companion, temporarily reducing the stats linked to active spell note stacks from Isabella's Ultimate. The debuffs last 8s and are 80% as effective as the corresponding buffs from spell note stacks.

Whenever Isabella's companion receives a buff that increases their ATK, Phys DEF, or Magic DEF by at least 15%, or increases their ATK SPD, Haste, or Vitality by at least 15, Isabella gains an extra stack of the corresponding spell note.