Ambuscade/Battlefield Archive/Ironclad Reoriginator

Ironclad Reoriginator
Face off against the Iron Giant Ironclad Reoriginator

The main gimmick of the fight appears to be its use of Mode Change, used every minute or so. As an Iron Giant is has unique properties to its three types of auto attacks:
 * Type 1: Front sweep with sword. AOE Physical damage.
 * Type 2: Front vertical slash with sword. Cone-shaped physical damage + Stun
 * Type 3: Stomp: AOE Physical damage + Amnesia

Appears vulnerable to Thunder elemental damage in all phases.

Special Moves:
 * Mode Change: Every 60 seconds the Ironclad Reoriginator will shift between four separate "Modes" altering its remaining ability use and the types of damage it is vulnerable to

Mode 1: Turbine Cyclone Mode
 * Takes considerably less physical and magical damage in this mode, but appears to take more physical damage from the front.
 * Turbine Cyclone: AOE Physical damage + Dispel (takes 2 buffs) + Knockback. Absorbed by shadows.
 * Ballistic Kick: Deals percentage based (~75%) damage + Knockback to a single target. Inflicts Encumbrance and resets hate.

Mode 2: Seismic Impact Mode
 * Will also now take extra damage from Wind elemental sources. Gains a potent Stoneskin in this mode.
 * Seismic Impact: AOE Earth damage + Slow (overwrites Haste) + Partial hate reset + 15s Terror. Pierces shadows.

Mode 3: Scapula Beam Mode
 * Gains a Regain effect and will also now take extra damage from Dark elemental sources. A strong enough source of Dark elemental damage can force a mode change.
 * Scapula Beam - AOE Thunder damage, all stats -100 for 30 seconds. Wipes shadows.
 * Eradicator - Wide AOE Magic damage + brief Weakness. Pierces shadows.

Mode 4: Arm Cannon Mode
 * Gains a Blaze Spikes and now takes extra damage from Water elemental sources.
 * Arm Cannon: AOE Fire Damage + Max HP Down, Max MP Down (-25%) + Knockback. Pierces Shadows.
 * Incinerator: Front AOE Fire Damage + moderate Burn effect (38 HP per tick)

Spells Cast:
 * None

Where to get your Primer:
 * Ru'Aun Gardens is crawling with arcana not far from a Survival Guide.
 * The Shrine of Ru'Avitau has a scattering of golems accessible from Home Point #1
 * Fei'Yin has a small clutch of Magic Pots on a long respawn timer near Home Point #1