Behemoth King (Record Keeper)

Behemoth King is a boss in Final Fantasy Record Keeper, fought in the Behemoth King Record of the Magicite Dungeons.

This version of Behemoth King is based on the Final Fantasy XIII enemy.

AI script

 * Reaper: 394% AoE physical (PHY)
 * Sunder: 468% AoE ranged physical (NAT)
 * Shockstorm: AoE 392% piercing lightning ranged physical (NAT)
 * Thundaga: AoE 486% lightning magic (BLK)
 * Bravery: self auto-hit ATK +50% for 10 seconds - uncounterable, cannot be reflected (WHT)
 * Enthunder: self lightning damage +10% - uncounterable (NAT)
 * Thundaja: self 9999% lightning magic capped at 99999, uncounterable (BLK)
 * Savage Hurl: 400% piercing ranged physical, auto-hit Interrupt
 * Savage Sunder: AoE 468% earth ranged physical, 100% chance of removing Haste
 * Savage Shockstorm: AoE 468% piercing lightning ranged physical, ignores Mirror Image

After its fifth turn, Behemoth King will enter Lightning Rage. In this state, it deals +50% more damage but takes an additional 25%, and its ATB and abilities charge at 90% of base speed; after Lightning Rage is interrupted with any overflowing attack, Behemoth King will re-enter on its seventh turn since the last entry.

If the HP thresholds aren't reached fast enough, Behemoth King will enter Phase 2 after its 10th turn, Phase 3 after the 20th, and will enrage after the 30th.

Phase 1 (100-70% HP)

 * Turn 1: Wait (no action)
 * Turn 2: Shockstorm
 * Turn 3: Bravery
 * Turn 4: Reaper
 * Turn 5: Sunder
 * Turn 6: Thundaga
 * Turn 7: Reaper
 * Turn 8: Sunder
 * Turn 9: Thundaga
 * Turn 10: Thundaja

Phase 2 (80-41% HP)

 * Turn 1: Enthunder
 * Turn 2: Savage Shockstorm
 * Turn 3: Savage Sunder
 * Turn 4: Thundaja
 * Turn 5: Savage Hurl (party slot 1)
 * Turn 6: Thundaga
 * Turn 7: Reaper
 * Turn 8: Savage Hurl (party slot 2)
 * Turn 9: Thundaga
 * Turn 10: Thundaja
 * Turn 11: Reaper
 * Turn 12: Savage Hurl (party slot 3)
 * Turn 13: Thundaga
 * Turn 14: Reaper
 * Turn 15: Savage Hurl (party slot 4)
 * Turn 16: Thundaga
 * Turn 17: Reaper
 * Turn 18: Savage Hurl (party slot 5)
 * Turn 19: Thundaga
 * Turn 20: Thundaja

Phase 3 (40-0% HP)

 * Turn 1: Enthunder
 * Turn 2: Savage Shockstorm
 * Turn 3: Savage Sunder
 * Turn 4: Reaper
 * Turn 5: Savage Hurl (party slot 5)
 * Turn 6: Savage Shockstorm
 * Turn 7: Reaper
 * Turn 8: Savage Hurl (party slot 4)
 * Turn 9: Savage Shockstorm
 * Turn 10: Thundaja
 * Turn 11: Reaper
 * Turn 12: Savage Hurl (party slot 3)
 * Turn 13: Savage Shockstorm
 * Turn 14: Reaper
 * Turn 15: Savage Sunder
 * Turn 16: Thundaja
 * Turn 17: Savage Hurl (party slot 2)
 * Turn 18: Savage Shockstorm
 * Turn 19: Reaper
 * Turn 20: Enthunder
 * Turn 21: Savage Shockstorm
 * Turn 22: Savage Sunder
 * Turn 23: Thundaja
 * Turn 24: Savage Hurl (party slot 1)
 * Turn 25: Savage Shockstorm
 * Turn 26: Reaper
 * Turn 27: Savage Hurl (party slot 3)
 * Turn 28: Savage Shockstorm
 * Turn 29: Reaper
 * Turn 30: Thundaja

Enraged

 * Turn 1 + 3n: Savage Shockstorm
 * Turn 2 + 3n: Savage Sunder
 * Turn 3 + 3n: Savage Hurl (progressing from party slot 1 - 2 - 3, and so on with each use)

Strategy
A party of magic attackers is required, as all damage Behemoth King takes from physical attacks is reduced to 1/3.

Unlike most 5★ Magicite bosses, Behemoth King's Rage mode lowers his defenses. Unless your characters have already reached the regular damage cap, it's more viable to not remove Lightning Rage throughout the fight, despite the boss's increased damage output.

Although Sunder and Savage Sunder are earth-elemental, lightning resistance accessories are strongly recommended to reduce incoming damage. In particular, Savage Sunder removes Haste, so this move should be countered with a well-timed Hastega or blocked with a source of Mirror Image.

Behemoth King's Bravery buff increases its ATK stat by 50%, but lasts 10 in-game seconds and is only used once in the fight. Unless a viable debuff like Exhausting Polka is available to counter it, this should be ignored.

Savage Hurl is guaranteed to Interrupt its target, but this can be prevented with a status debuff barrier granted by such Soul Breaks as Tyro's Arbiter's Apocrypha and Larsa's Potions Aplenty.