Wicked Peaks/New Trial of the Demon

Abilities

 * Death: Inflict death (60%) to one enemy
 * Night Terror: Dark magic damage (1.2x) to one enemy
 * Demonic Trial: Decrease ATK/DEF/MAG/SPR (50%) for 3 turns to all enemies
 * Dark Barrier: Mitigate physical damage taken (100%) for 2 turns to caster (can't be dispelled).
 * Dark Messenger: Dark magic damage (9.3x) to all enemies. Decrease dark resistance (100%) for 3 turns to all enemies.
 * Bioga: Dark magic damage (1.05x) to all enemies. Inflict poison (100%) to all enemies.
 * Shadow Strike: Physical damage (16x) to one enemy
 * Gravity: 50% HP damage* to one enemy
 * Graviga: 75% HP damage* to all enemies
 * Shadow Impact: Dark magic damage (1.45x) to all enemies
 * Blackout: Inflict blind and paralyze (100%) to all enemies. Inflict stop (60%) for 3 turns to all enemies.
 * Ruinous Omen: Dark magic damage (1.3x) to all enemies. Decrease dark resistance (60%) for 3 turns to all enemies.
 * Evil Mood1: Heal (1050 HP, 8x) to all enemies
 * Evil Mood2: Increase ATK/MAG (30%) for 2 turns to all enemies
 * Evil Mood3: Remove all buffs and debuffs from all enemies

Attack Pattern

 * Threshold attacks:
 * 80% HP
 * Blackout
 * Graviga
 * Ends turn
 * 60% HP
 * Blackout
 * Graviga
 * Ruinous Omen
 * Ends turn
 * 40%/20% HP
 * Blackout
 * Dark Messenger
 * Ends turn
 * If hit with a dark element attack, above 50% HP, uses one of the following:
 * Evil Mood1 (16.1%)
 * Evil Mood2 (28.7%)
 * Evil Mood3 (33.6%)
 * Does nothing (21.6%)
 * Under 50% HP:
 * Every 2 turns, uses one of the following:
 * Evil Mood1 (16.1%)
 * Evil Mood2 (28.7%)
 * Evil Mood3 (33.6%)
 * Does nothing (21.6%)
 * Every 4 turns: Dark Barrier
 * Remaining attacks follow a 2-turn rotation:

Tips

 * See testimonials and discussions.
 * Bring death resist via Safety Bit or Genji Shield on a provoke tank
 * Bring a source of blind, paralysis and stop immunity.
 * Gear your team with dark resistance, or bring a magic cover tank with 200% (innate + buffs) dark resistance.
 * Gravity, Graviga, Death and Bioga can be reflected, or sealed with Manufacted Nethicite, Sealing Blade and Silence
 * The Graviga attack can be best dealt with in the following ways:
 * Using a source of reflect will allow you to avoid its damage.
 * Defending with your magic cover tank (on the 80% and 60% HP threshold) helps it to survive while covering Graviga.
 * Cast one of the following abilities: Manufacted Nethicite, Sealing Blade from Celes or Silence from Rena.
 * Veritas of the Light has passive demon killers and light imperil, equipping her with Diabolos and chaining with a dupe will bring down Diabolos easily.
 * Any magical chainer can bring down Diabolos easily. Protect the party against the threshold.
 * Diabolos has much lower SPR than DEF. Magic damage chains (Tornado+Aeroja) or even Lila will trivialise this trial.
 * Since Veritas of the Dark can absorb dark attacks, if geared for evasion with death resist, a source of Demon Killer, enough mp recovery to use Dual Slash constantly, then he can mostly solo. A light element weapon will make it go slightly faster. Bring a couple units that have a Hide-type skill, can Raise DV should he get stopped, and to summon Carbuncle.