[High Difficulty] The Santas' Year-End Party

On Death:

• "You should enjoy the party too": Increase Buster Card effectiveness by 30% for all enemies and allies (including backline) (3 turns) [Unremovable].

Battle Start:

• "Merry, it's Christmas again today!": Increase NP Gauge by 1 each turn for all allies (including backline) (3 turns) [Unremovable]. Increase NP Gauge by 10% for all enemies (including backline) (3 turns) [Unremovable].

On Death:

• "Are you tired? Try some of this delicious lemonade!": Decrease ATK by 20% for all enemies and allies (3 turns) [Unremovable]. Restore 30,000 HP for all allies, and restore 5,000 HP for all enemies.

Battle Start:

• "Come play with us!": Increase ATK by 10% for all enemies and allies (including backline) (3 turns) [Unremovable]. Further increase ATK by 20% for all [Child] trait enemies (including backline) (3 turns) [Unremovable]. Increase own ATK by 20% (3 turns) [Unremovable].

On Death:

• "Excuse me, but I am on the Santas' side": Apply [The Rose Black Keys] to all enemies (including backline) [Unremovable].
• [The Rose Black Keys]: Every 4 turns, decrease HP by 1,000 and remove 1 most recent buff.

Battle Start:

• "Let's have a great party while we are at it": Increase NP Damage Resist for all enemies and allies (including backline) (1 time) [Unremovable].

On Death:

• "Hoh, perhaps you can overcome this Santam...": Apply Evade for all Santa allies (including backline) (1 time, 3 turns) [Unremovable]. Remove Confusion on all enemies and allies (including backline).

Battle Start:

• "Do you think a turkey like that will do?": Increase ATK by 10% for all allies (including backline) (3 turns) [Unremovable]. Inflict Confusion on all enemies and allies except self (including backline) (1 time, 3 turns) [Unremovable]: 30% chance to inflict Skill Seal every turn (1 turn).

On Death:

• "Parties are good civilization": Increase Quick Card effectiveness by 30% for all enemies and allies (3 turns) [Unremovable].

Battle Start:

• "Hoho, this is pretty fun, Master": Increase NP Strength by 20% for all enemies and allies (including backline) (3 turns) [Unremovable].

On Death:

• "Let's make this show even more exciting!": Apply Guts to all enemies and allies (including backline) (1 time, 3 turns, 10% HP revival) [Unremovable].

Battle Start:

• "Carnival for everyone!": Increase Critical Strength by 10% for all enemies and allies (including backline) (3 turns) [Unremovable]. Further increase Critical Strength by 20% for all [Evil Alignment] enemies (including backline) (3 turns) [Unremovable]. Apply 50% Special ATK vs [Evil Alignment] to self (3 turns) [Unremovable].

On Death:

• "I hope everyone doesn't get too carried away": Apply Debuff Immune to all enemies and allies (including backline) (1 time, 3 turns) [Unremovable].

Battle Start:

• "Don't get too carried away just because it's a party": Increase DEF by 10% for all enemies and allies (including backline) (3 turns) [Unremovable]. Further increase DEF by 20% for all [Child] enemies and allies (including backline) (3 turns) [Unremovable].

On Death:

• "Let's have a good match. Let's have a good match.": Increase Critical Rate by 30% for all allies (including backline) (3 turns) [Unremovable]. Apply to all enemies (including backline): Gain 5 Critical Stars each turn (3 turns) [Unremovable].

Battle Start:

• "Is this the venue for the special match": Apply Sure Hit to all enemies and allies (including backline) (3 turns) [Unremovable].

On Death:

• "My, I have to provide a dish!": Increase Arts Card effectiveness by 30% for all enemies and allies (including backline) (3 turns) [Unremovable].

Battle Start:

• "I made some delicious food!": Restore 10,000 HP each turn for all allies (including backline) (3 turns) [Unremovable]. Restore 1,000 HP each turn for all enemies (including backline) (3 turns) [Unremovable].

Passive:

• Year-End Party Host: Increase own Damage Resist by 100%, apply Debuff Immune to self, and apply Damage Cut by 1,000,000 to self [Unremovable].

Battle Start:

• Captain: "Marines, are your presents ready?": Dialogue [Marines: "Just a little bit more~!"]: Apply a delayed buff to self that activates after 1 turn.
• After 1 turn: "Alright, it's time for presents": Increase NP Gauge for all allies to MAX (including backline). Increase NP Gauge by 30% for all enemies (including backline). Inflict NP Seal on all [Evil Alignment] enemies (including backline) (3 turns) [Unremovable].

When Nemo Santa is the only remaining enemy:

• The Banquet is in Full Swing: Remove all [Year-End Party Host] buffs from Nemo (Santa).