Armor of Oppression

Overview

 * Difficulty: 10★
 * Reference: Announcement
 * Release Date: 6/21/18,.

Battle Info
ADV=

Armor of Oppression - ADV
PRO=

Armor of Oppression - PRO
ELT=

Abilities

 * Meteor: Magic damage (10.67x) to all enemies
 * Reaper: Physical damage (7x) to all enemies
 * Pressure is tightening!: Fixed damage (1000) to all enemies. Inflict paralyze (100%) on all enemies. Fixed damage (0.01x) as MP drain (100%) to all enemies
 * The pressure is overwhelming!: Fixed damage (1000) to all enemies. Inflict paralyze (100%) on all enemies. Fixed damage (0.01x) as MP drain (100%) to all enemies
 * Power is being released!: Increase ATK/DEF/MAG/SPR (100%) for 3 turns to caster

Threshold Attacks

 * 80% & 60% HP
 * Reaper
 * Meteor
 * 3x Normal attacks
 * Ends turn
 * 50% HP
 * The pressure is tightening!
 * Continues with the regular attack pattern for that phase
 * On the next turn: The pressure is overwhelming!
 * 40% & 20% HP
 * Reaper
 * Meteor
 * Power is being released!
 * Ends turn
 * On the next turn: The pressure is overwhelming!, 2x Reaper, ends turn.

100% - 50% HP

 * Meteor each turn
 * 4x Normal attacks
 * Ends turn

49% - 0% HP

 * The pressure is overwhelming!, then Meteor each turn
 * 34% chance of casting a second Meteor each turn
 * After using 3 "guaranteed" Meteor,
 * Uses Power is being released! on the same turn
 * Uses 2x Normal attacks or Meteor 1x and Normal attack after casting the buff, on the same turn
 * The next turn, uses Reaper in addition to its normal attack rotation

Tips

 * See testimonials and discussions.

Strategy

 * Between 100%~50% HP, Iron Giant has an extremely predictable moveset - it uses Meteor followed by 4 normal attacks every turn.
 * On the 80% and 60% HP threshold, it will use Reaper, an AoE physical attack. If you cross both thresholds in the same turn, it will use them twice.
 * Using a physical cover tank with 100% evasion is highly recommended due to its high ATK. However, cover might fail to proc, especially against single target attack, so if you don't want to risk that you can use 100% provoke and then use cover during thresholds.
 * Alternatively, Sara can provide on-demand AoE mirage to deal with its AoE physical attack, and you can provoke the rest.
 * Meteor will be used every turn, but any decently geared unit should survive. With a 45% MAG break and 300 SPR, it will deal around ~4900 damage. This Meteor cannot be reflected or sealed.
 * Alternatively, you can use both magic and physical cover tanks due to his very specific moveset.
 * On the turn where he doesn't use Reaper, your magic cover tank will cover the Meteor
 * On the turn he uses Reaper, your physical cover tank will cover it, and your units will take Meteor
 * Make sure to dispel his buff and reapply breaks whenever it uses Power is being released!.
 * It's extremely weak to magic damage, with magic attacks dealing ~8.57 times more damage than physical attacks. If you don't have any magic chainers, using physical chainers with a magic finisher would suffice.
 * Once you get close to 50% HP, break its SPR if you haven't already, and defeat it in one turn with a chain (and finisher/Esper).
 * If you cannot OTKO it from 50%, make sure all of your units resist Paralyze, otherwise you can opt using resistance boost abilities, e.g. Mystea's Clear Veil.
 * After pushing it through 40% and 20% threshold, there will be one turn each where it only uses The pressure is overwhelming! and Reaper (no Meteor). Therefore, using 100% evasion cover will give you one free turn each where you can recover.