[High Difficulty] Slayers, Descending to Chaldea

Street Poet Princess
Battle Start: "Are you ready? Let's make this more exciting!": Apply "Let's go and get excited!" to self: Randomly apply 1 of 4 effects at the end of the turn after using own NP (Effects on the player's party are not applied if Evade / Invincible was active):
1) "You all having fun!?": Increase party's ATK by 20% (10 turns) [Demerit, Unremovable]. Increase own ATK by 40% (10 turns) [Unremovable].
2) "Yay! Not enough!": Increase own Max HP by 50,000 (10 turns) and increase party's Max HP by 5,000 (10 turns) [Demerit].
3) "Raise the roof!": Increase own NP Strength by 20% (10 turns) and increase party's NP Strength by 40% (10 turns) [Demerit].
4) "Come on! Let's make it sparkle!": Restore own HP by 100,000 and increase party's NP by 10% each turn (10 turns) [Demerit].

Street Poet Princess
On 1st Break: "Thanks for the encore!": Increase Crit Rate for all allies by 30% (5 turns).

Street Poet Princess
On 2nd Break: "It's all the feels...and that's being modest!": Clear Debuffs from all allies. Increase all allies' NP Gauge by 1.

Ya Boy Great Tactician
Battle Start: "Let's set the stage": Apply NP Seal Immune to all allies [Unremovable]. Increase own NP Gauge to MAX.
Special Skill 1: "I'll treat you to a drink.": Apply Evade to a random frontline party member (2 times, 3 turns).
Special Skill 2: "It's not resplendent enough. I'm taking some": Decrease Critical Stars by 20. Increase all allies' Critical Rate by 20% (2 turns).
Special Skill 3: "You need to chill a little": Remove 1 buff from all enemies.

Ya Boy Great Tactician
On Break: "It's party time!": Apply to Sei Shounagon:
- Ignore DEF (1 turn).
- Invincible (1 turn).
- Increase NP Gauge to MAX.