Shadows of Ruination

Overview

 * Origin: Final Fantasy Brave Exvius
 * Type: Challenge Event
 * Reference: Announcement
 * Related Event: Darkness Apocalypse
 * Event Period: 3/1/19 00:00 - 3/7/19 23:59 PST

Challenge the boss in this high difficulty dungeon and enrich your party with the bountiful rewards that can be obtained during this limited-time event!

Abilities

 * Cursed Flash: Light magic* damage (3x) to all enemies. Restore 5% HP to all allies.
 * Malefic Sacrifice: Sacrifice 100% HP to deal 10% HP damage to all enemies. Magic damage (200x) to all enemies.

Wave 1

 * Spirit Burn: Magic* damage (4x) to all enemies. Hybrid damage (2x) as MP drain (50%) to all enemies. Decrease ATK/DEF/MAG/SPR (50%) for 5 turns to all enemies.
 * Intimidating Gaze: Dark magic damage (3x) to all enemies. Inflict petrify (50%) on all enemies.
 * Maniacal Slash: Physical damage (3x) to all enemies. Physical damage (1x) as HP drain (150%) to all enemies.
 * Deadly Thrust: Physical* damage (9x) to one enemy. Hybrid damage (1x) as MP drain (150%) to one enemy.
 * Cursed Mind: Magic damage (9x) to one enemy. Inflict 2 random status ailments (petrify 100%, others 30%) to one enemy.
 * Growl: Mitigate magic damage taken (100%) for 1 turn to caster (can't be dispelled)
 * Sinister Gaze: Light magic damage (3x) to all enemies. Inflict confuse (100%) on all enemies.
 * Wail: Mitigate physical damage taken (100%) for 1 turn to caster (can't be dispelled)

Attack Pattern

 * Pre-emptive attack:
 * Spirit Burn
 * Cursed Mind (to highest SPR unit)
 * Intimidating Gaze
 * Sinister Gaze
 * Ends turn
 * On turn 2, 5, 8, etc (3n-1 turns), uses either Growl or Wail (rotates between them every 3 turns)
 * Threshold attacks:
 * 70% HP: Sinister Gaze
 * 50% HP: Cursed Mind (to highest SPR unit)
 * 30% HP: Maniacal Slash
 * On turn 2, 5, 8, etc: Growl
 * Remaining actions are:

Wave 2

 * Spirit Burn: Magic* damage (4x) to all enemies. Hybrid damage (2x) as MP drain (50%) to all enemies. Decrease ATK/DEF/MAG/SPR (50%) for 5 turns to all enemies.
 * Deadly Intimidating Gaze: Dark magic damage (3x) to all enemies. Inflict petrify (50%) on all enemies. Decrease dark resistance (50%) for 3 turns to all enemies.
 * Maniacal Slash: Physical damage (3x) to all enemies. Physical damage (1x) as HP drain (150%) to all enemies.
 * Deadly Thrust: Physical* damage (9x) to one enemy. Hybrid damage (1x) as MP drain (150%) to one enemy.
 * Deadly Cursed Mind: Magic damage (9x) to one enemy. Inflict berserk (+0% ATK) for 1 turn to one enemy . Decrease SPR (70%) for 5 turns to one enemy.
 * Growl: Mitigate magic damage taken (100%) for 1 turn to caster (can't be dispelled)
 * I will destroy you!: Magic damage (120x) to all enemies. Decrease light and dark resistance (300%) for 3 turns to caster.
 * Deadly Sinister Gaze: Light magic damage (3x) to all enemies. Inflict confuse (100%) on all enemies. Decrease light resistance (50%) for 3 turns to all enemies.
 * Wail: Mitigate physical damage taken (100%) for 1 turn to caster (can't be dispelled)

Attack Pattern (Awakened Hasiko)

 * Preemptive attacks:
 * Spirit Burn
 * Deadly Cursed Mind (to highest SPR unit)
 * Deadly Intimidating Gaze
 * Deadly Sinister Gaze
 * Ends turn
 * If Spirit A is dead: I will destroy you!
 * If Spirit B is dead: I will destroy you!
 * On turn 2, 5, 8, etc (3n-1 turns), uses either Growl or Wall (rotates between them every 3 turns)
 * Threshold attacks:
 * 70% HP: Deadly Sinister Gaze
 * 50% HP: Deadly Cursed Mind (to highest SPR unit)
 * 30% HP: Maniacal Slash
 * Continues with the attack pattern for the turn


 * Remaining actions are:

Attack Pattern (Spirit)

 * Cursed Recovery each turn (40% chance)
 * After 15 turns: Malefic Sacrifice

Tips

 * See testimonials and discussions.
 * Bring status ailment resists (especially confuse and petrify) for all units
 * Sources of Auto-Refresh, AoE MP refresh like Bless +2, and MP restore will help against the randomly occurring MP drains.
 * Units that can restore MP via lb crysts are very helpful, such as Rem, Folka, Awakened Rain.
 * Break resistance like Jade Resilience or Intro/Album Cover and break removal like Dispelga or Deshellnaga will allow you to deal more damage and take less damage.
 * Bosses mainly use hybrid damage to absorb MP, gear units with decent DEF and SPR.
 * Break the bosses ATK/MAG to reduce MP drain amount.
 * When a Spirit is killed, Awakened Hasiko uses a nuke, and imperils herself (-300% Light and Dark) for 3 turns. When the imperil wears off, kill the other Spirit for another 3 turns of imperil.