What to know
- The Frozen Heart Plate Armor set is scattered across Delicia and its eastern island, with one piece tied to a Chapter 11 story quest.
- Most armor pieces are hidden in secret rooms behind rotating‑panel walls near Delicia Castle and the seaport.
- The Electro Mecha Longsword drops from the Machina Knight boss, located in a large facility at Marnie’s Outpost in Delesyia.
- The set has no dedicated helmet, so you can mix in any headgear you prefer while still benefiting from the full set appearance and stat bonuses.
Getting the full Frozen Heart Plate Armor set and the Electro Mecha Longsword in Crimson Desert is a late‑game power spike that turns your character into a regal knight‑like build with strong lightning‑based damage.
Locations
The Frozen Heart Plate Armor set is one of Crimson Desert’s flagship knight‑style builds, giving you a cleanly styled, regal look with a mix of shiny metal and cloth‑like accents. All pieces except the cloak are found in Delesyia and its eastern island, while the Electro Mecha Longsword sits in a separate late‑region boss chamber.
Here is a quick overview of where each piece lies and how it connects to the broader region.
| Piece | Location region | Sub‑location / condition |
|---|---|---|
| Frozen Heart Plate Armor | Delicia | Secret room behind rotating panel wall inside Delicia Castle. |
| Frozen Heart Plate Gloves | Delicia | Hidden tunnel under the eastern seaport, behind planks. |
| Frozen Heart Plate Boots | Delicia (eastern island) | Wall‑side secret room behind another rotating panel near the eastern‑island gate. |
| Frozen Heart Plate Cloak | Story quest | Reward for destroying the Dreadnought in a Chapter 11, Forbidden Gatekeeper‑related objective. |
| Electro Mecha Longsword | Delesyia | Dropped by the Machina Knight at Marnie’s Outpost facility. |
Across the set you unlock a full knight‑style look that can be customized with different materials and dyes, which can be changed at any major dye vendor.
How to get the Frozen Heart Plate Armor pieces
Plate armor location in Delicia Castle
Fast travel to the main Delesyia Castle zone and put on the Vigione‑style helmet you acquired early in the story to pass the guards’ inspection.
With the helmet on, approach the guards. They will let you through to the castle area.
Cross the main bridge into the castle area.
Then immediately turn left after the bridge and move past the large mech and soldiers.
Climb onto the nearby wall (on the right) where you see a panel that looks different from the rest of the structure.
Then rotate the panel with the appropriate prompt.
Inside the opened room, grab the chest containing the Frozen Heart Plate Armor.
This piece can later be upgraded with abyss cores and materials for better defense and durability.
Frozen Heart Plate Gloves at the eastern seaport
From the Delesyia Castle fast‑travel point, take the left path along the main city walkway and follow it down to the outer wall.
Climb the wall at the edge.
And glide over to the eastern seaport where the boats are moored, being careful of flying turrets and patrols.
Walk along the covered ramp section.
Look for an undercover cubby with planks blocking a small recessed area; break the planks with your weapon or grappling ability.
Enter the space and open the chest to the right.
Collect the Frozen Heart Plate Gloves, another core piece that also supports upgrade‑style abyss cores.
Frozen Heart Plate Boots on the eastern island
Head to the eastern island of Delesyia and use the fast‑travel point near the main gate and the bridge leading onto the island.
From the fast‑travel marker, run along the right‑hand side of the outer gate and follow the rocky path around the base of the wall toward the hidden niche.
Climb up onto the wall section piled with crates, find another suspicious rotating panel.
Grab onto a corner, and rotate the panel to open a secret room.
Inside that room, loot the chest to obtain the Frozen Heart Plate Boots.
Like the other pieces, this can be upgraded with materials and abyss cores for higher end‑game viability.
Frozen Heart Plate Cloak from a Chapter 11 quest
Progress the main story until you reach Chapter 11, specifically the Truth and Reality arc with the Forbidden Gatekeeper faction quest. During that quest, one of the key objectives is to destroy the Dreadnought; completing this portion of the mission unlocks the cloak piece.
If you attempt to grab the cloak earlier, you may find the required enemies or the cloak itself missing, so it is best to wait until this story beat is active.
After finishing the objective, claim the Frozen Heart Plate Cloak as a rewarded item; this finalizes the knight‑like silhouette and contributes to the full set bonus.
How to get the Electro Mecha Longsword
Machina Knight location and preparation
The Electro Mecha Longsword is not found in chests or vendors; it drops directly from the Machina Knight boss located in the Marnie’s Outpost facility in the northern Delesyia region.
Before heading in, make sure you have at least mid‑game equipment and maxed stamina and healing items, as the boss has two aggressive phases and can quickly drain your resources.
The facility is hard to miss once you reach the area; it is a large, heavily defended industrial complex with a single central boss chamber.
Fighting the Machina Knight (Phase 1)
Enter the facility and head directly to the central arena without clearing every mob; the boss room is accessible even if surrounding troops are still active.
In Phase 1 the Machina Knight wields a standard longsword and uses slower, more predictable three‑hit combos; focus on parrying and light counter‑attacks instead of spamming heavy swings.
Keep your distance when the boss raises his weapon overhead for a wide vertical strike; sidestep or dodge to the side and use the opening for a quick combo rather than overextending.
Defeating the Machina Knight (Phase 2)
After the boss loses a significant portion of his health, he switches to a spear‑like weapon and becomes much faster and more aggressive.
In Phase 2, use active dodges and rolls instead of relying on parries; his attacks gain more coverage and are harder to block, so prioritize spacing and stamina‑efficient dodges.
Wait for obvious wind‑up animations where the spear is fully extended or the boss lunges; punish these with a short, precise combo, then back away to regenerate stamina.
After defeating the boss, loot his remains to obtain the Electro Mecha Longsword, a two‑handed lightning‑affinity weapon that can stack up to three elemental charges per fight.
This weapon cannot be refined in the standard way, but its unique lightning‑build‑up mechanic and high damage output make it a strong end‑game two‑handed option.
How to complete the full Frozen Heart Plate Armor set setup
With all four armor pieces and the Electro Mecha Longsword in hand, your character essentially becomes a high‑tier knight‑style build with a flashy royal look. Since the set does not come with a dedicated helmet, you are free to equip any headgear that complements your stats or preferred playstyle, such as a high‑defensive helm or a crit‑focused visor.
Consider the following optimizations:
- Visit dye vendors in major cities to change the material tone of the armor, making the metal look shinier or darker for a more regal or menacing appearance.
- Use abyss cores on each piece to boost resistances, health regeneration, or damage output, tailoring the set to your preferred role (tank, bruiser, or balanced DPS).
- Pair the Electro Mecha Longsword with a shield or defensive ability loadout if you want to lean into the knight fantasy, or use lighter gear if you prefer a faster, more mobile build.
A combination worth the grind!
The Frozen Heart Plate Armor set and the Electro Mecha Longsword together give you one of the most visually distinct knight‑style builds in Crimson Desert, packed with customizable stats and strong late‑game performance.
The armor pieces are spread across Delicia’s castle, seaport, and eastern island, while the Electro Mecha Longsword caps the set off with a unique lightning‑based weapon from a two‑phase boss fight. If you enjoy regal, knight‑inspired aesthetics combined with a powerful lightning‑dealing weapon, this full setup is one of the most rewarding power spikes you can aim for in the late game.
