Charlemagne Costume/Ascension 3 Interlude: Himiko Core Engine

Volume is a bit low as I started w/o adjusting it prior to recording.
Full Throttle, this isn't an easy battle if you are careless. At the start of battle, Karl gets a Special Attack Buff (50%) (permanent/unremovable) against all of your King Servants. All of your King Servants get a Special Attack Buff (100%) (permanent/unremovable) against Karl and deal neutral damage against him. He's more than capable of pulverizing your own Avengers if he can crit them. Once his final break bar is gone, unless you have Guts up and/or Buff Removal Resist (100%) on your Servants, your defense buffs might not even save you.
At the start of battle, Karl gets these unremovable buffs.
* Blessings of the Twelve Heroes: Gains Special Defense (50%) (12 times)
* Privileges of the Great Emperor: Gains Attack Up (30%), Defense Up (30%), and Recovers HP by 20,000 every turn (All for 5 turns)
Upon Karl's first break bar:
* Authority of the Supreme Ruler: Removes 2 latest buffs from all enemies, gains Buster Up (50%) and Inflicts Defense Down (10%) (3 turns) on the target when attacking [All Permanent]
Upon Karl's last break bar:
* Attack of the Virtuous Monarch: Gains Invincibility (3 times), Buster Up (100%) (3 times), and Removes 1 latest Defense buff from the target when attacking [Permanent]
** Defense Buffs: Defense Up/Defense Cut, Quick/Art/Buster Resist Up, NP Damage Resist, Evade, Lethal Damage Evasion, Invincibility, Anti-Purge, Ignore-Class Defense Disadvantage, and Insta-Kill Death Resist Up