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Specials Lv 4 Plus is an Aux Core or a Skill RAM/Upgrade in Xenoblade Chronicles 2 and Torna ~ The Golden Country. It increases the damage dealt by Level 4 Specials by up to 70%.

The Skill RAM/Upgrade variants can be used to customize Poppi α, Poppi QT and Poppi QTπ as an Aux Core equivalent.

Stats

Aux Core
Aux Core Rarity Effect Sell Price
Unrefined Refined
Specials Lv 4 Plus I Rarity1.png Increases Lv 4 Special damage by 20%. 350 G 550 G
Specials Lv 4 Plus II Rarity1.png Increases Lv 4 Special damage by 30%. 900 G 1,350 G
Specials Lv 4 Plus III Rarity2.png Increases Lv 4 Special damage by 40%. 1,400 G 2,100 G
Specials Lv 4 Plus IV Rarity2.png Increases Lv 4 Special damage by 50%. 1,750 G 2,650 G
Specials Lv 4 Plus V Rarity3.png Increases Lv 4 Special damage by 60%. 1,900 G 2,850 G
Specials Lv 4 Plus VI Rarity3.png Increases Lv 4 Special damage by 70%. 2,400 G 3,600 G

Skill RAM
Skill RAM Effect Energy
Required
Ether Crystals Technical Manual
Create Crystallize
Specials Lv 4 Plus I Increases Lv 4 Special damage by 20%. 25 150 90 Robolab Club Quarterly
Specials Lv 4 Plus II Increases Lv 4 Special damage by 30%. 50 500 200 Robolab Club Quarterly
Specials Lv 4 Plus III Increases Lv 4 Special damage by 40%. 75 900 330 Hypertech Made Easy
Specials Lv 4 Plus IV Increases Lv 4 Special damage by 50%. 100 1,400 490 Hypertech Made Easy
Specials Lv 4 Plus V Increases Lv 4 Special damage by 60%. 125 3,600 900 Hypertech Made Easy

Refinement Recipes

Aux Core Requirement Materials Amount
Specials Lv 4 Plus I Specific Fancy Bolt x1
Jungle Frame x1
Mille-Feuille Rock x1

Aux Core Requirement Materials Amount
Specials Lv 4 Plus II Specific Dusk Bamboo x2
Snake Joint x2
Siren Nut x2
Rabbit Diode x1

Aux Core Requirement Materials Amount
Specials Lv 4 Plus III Specific Cyber Spoon x1
Dynamo Turbine x1
Magnet Clay x1
Tail Antenna x1

Aux Core Requirement Materials Amount
Specials Lv 4 Plus IV Specific Cyber Spoon x2
Dynamo Turbine x2
Screw Coil x1
Dark Gray Spring x1
Warning Lamp x1

Aux Core Requirement Materials Amount
Specials Lv 4 Plus V Specific Modern Resistor x2
Gold Condenser x1
Art Core Coil x1
Mystic Dahlia x1
Glory Angler x1

Aux Core Requirement Materials Amount
Specials Lv 4 Plus VI Specific Modern Resistor x2
Gold Condenser x2
Art Core Coil x1
Mystic Dahlia x1
Glory Angler x1

Sources

Xenoblade Chronicles 2

In Xenoblade Chronicles 2, the Aux Core is always obtained in its unrefined state, and must be refined within an Ether Furnace at an Aux Core Stall before becoming usable.

Specials Lv 4 Plus I

Treasure Troves

Merc Mission Rewards

Dropped by

Name Spawn Area Level Rate
Gale Rocke Quest Argentum Trade Guild 26 14.0%
Leap Pippito Normal Kingdom of Uraya 21 - 23 14.0%
Menes Driver Normal Kingdom of Uraya 21 14.0%
Yellow Skeeter Normal, Summon Gormott Province 23 - 25 14.0%

Specials Lv 4 Plus II

Treasure Troves

Merc Mission Rewards

Dropped by

Name Spawn Area Level Rate
Amman Balgas Normal Temperantia 33 - 37 12.6%
Angry Rvano Quest Kingdom of Uraya 38 12.6%
Gulnid Aspid Normal Leftherian Archipelago 34 - 36 12.6%
Maanus Driver Quest Kingdom of Uraya 37 12.6%
Moskel Rhogul Normal Temperantia 35 - 37 12.6%

Challenge Battle Mode (DLC)

Challenge Name Difficulty Chest 1 Chest 2 Chest 3
Bewitching Dance CR2.png --- 0.82% 0.74%
Grazing Flock CR1.png --- 1.10% 1.04%
Pest Control CR1.5.png --- 0.50% 0.46%
Think of the Soldiers CR2.5.png --- 1.68% 1.64%
Titan Battleship Assault Special Battle --- 1.47% 1.40%

Specials Lv 4 Plus III

Quest Rewards

Merc Mission Rewards

Dropped by

Name Spawn Area Level Rate
Acar Nest Normal Cliffs of Morytha 50 - 52 11.2%
Aplom Pippito Normal Kingdom of Tantal 43 - 45 11.2%
Aplom Pippito Summon Kingdom of Tantal 40 - 42 11.2%
Bolc Vang Normal Cliffs of Morytha 47 - 49 11.2%
Dalian Lexos Normal Temperantia 49 - 51 11.2%
Empress Arachno Normal Spirit Crucible Elpys 46 - 48 11.2%
Gazust Mammut Normal Temperantia 50 - 52 11.2%
Lindwurm Cougar Quest Empire of Mor Ardain 53 11.2%
Nanda Arachno Quest Gormott Province 50 11.2%
Radyo Marrin Normal Spirit Crucible Elpys 46 - 48 11.2%
Zoke Garlus Normal Temperantia 47 - 52 11.2%

Specials Lv 4 Plus IV

Treasure Troves

Quest Rewards

Dropped by

Name Spawn Area Level Rate
Atrocious Hermes Unique Temperantia 58 9.8%
Blood-Crazed Stalker Quest (DLC) Temperantia 63 9.8%
Dilemma Scout Quest (DLC) Temperantia 60 9.8%
Familion Sovereign Summon World Tree 54 - 57 9.8%
Horiz Aspid Salvaging World Tree 57 - 61 9.8%
Margot Sovereign Normal World Tree 56 - 64 9.8%
Relic-Holder Tyrannor Quest Land of Morytha 57 9.8%

Specials Lv 4 Plus V

Quest Rewards

Dropped by

Name Spawn Area Level Rate
Dayvol Symbol Normal Kingdom of Uraya 75 - 77 8.4%
Graze Ellook Normal Kingdom of Uraya 74 - 76 8.4%
Telen Igna Normal Kingdom of Uraya 72 - 74 8.4%
Unflinching Saxton Unique Empire of Mor Ardain 99 8.4%

Challenge Battle Mode (DLC)

Challenge Name Difficulty Chest 1 Chest 2 Chest 3
Attack of the Aspar Special Battle --- 0.56% 0.66%
Call the Exterminators Special Battle --- 0.92% 1.19%
Darkening Skies CR3.png --- 0.54% 0.66%
Dread Contagion CR4.png --- 0.76% 0.95%
Elma: Redux CR4.png --- 0.37% 0.43%
Otherworldly Fighter CR3.png --- 0.37% 0.43%
Panic at the Seaside CR3.png --- 0.22% 0.24%
Poisoned Paradise CR3.png --- 0.92% 1.19%
Sacred Wood CR3.png --- 0.90% 1.19%
Serious Showdown CR4.5.png --- 0.22% 0.24%
Temperantian Standoff CR2.png --- 0.22% 0.25%
This Year's Heropon CR3.png --- 0.36% 0.43%
Tiger! Tiger! IRL CR2.5.png --- 0.22% 0.24%
Torna's Finest CR4.png --- 0.76% 0.93%

Specials Lv 4 Plus VI

Challenge Battle Mode (DLC)

Challenge Name Difficulty Chest 1 Chest 2 Chest 3
9th Imp. Armored Div. CR5.png 0.83% 0.33% ---
Attack of the Aspar Special Battle --- 0.56% 0.66%
Call the Exterminators Special Battle --- 0.92% 1.19%
Chickenheart Challenge CR3.png 2.35% 1.08% ---
Cloud King's Revenge CR4.png 0.48% 0.18% ---
Darkening Skies CR3.png --- 0.54% 0.66%
Dino Drama CR3.5.png 1.20% 0.48% ---
Dread Contagion CR4.png --- 0.76% 0.95%
Elma: Redux CR4.png --- 0.37% 0.43%
Fiercest Faction CR4.png 0.48% 0.18% ---
Humanoid Alliance CR4.png 0.47% 0.18% ---
Mk. VIII CR4.5.png 2.25% 1.08% ---
Otherworldly Fighter CR3.png --- 0.37% 0.43%
Panic at the Seaside CR3.png --- 0.22% 0.24%
Poisoned Paradise CR3.png --- 0.92% 1.19%
Reinventing the Gogol CR4.png 0.84% 0.33% ---
Sacred Wood CR3.png --- 0.90% 1.19%
Serious Showdown CR4.5.png --- 0.22% 0.24%
Temperantian Standoff CR2.png --- 0.22% 0.25%
This Year's Heropon CR3.png --- 0.36% 0.43%
Tiger! Tiger! IRL CR2.5.png --- 0.22% 0.24%
Torna's Finest CR4.png --- 0.76% 0.93%

Torna ~ The Golden Country

In Torna ~ The Golden Country, the Aux Core is always obtained in its refined state.

Specials Lv 4 Plus I

Treasure Troves

Dropped by

Name Spawn Area Level Rate
Anbu Vang Normal Kingdom of Torna 21 - 23 14.0%
Legia Flier Normal, Summon Kingdom of Torna 21 - 25 14.0%

Specials Lv 4 Plus II

Treasure Troves

Specials Lv 4 Plus III

Dropped by

Name Spawn Area Level Rate
Arcah Pippito Normal Kingdom of Torna 51 - 53 11.2%

Skill RAM / Upgrade

Poppiswap

The Skill RAM or Upgrade variant can be crafted through Poppiswap's "Create/Crystallize" menu using Ether Crystals obtained from Tiger! Tiger! or from crystallizing other Poppi Parts. Create costs and required Technical Manuals are present in the Stats section.

Tiger! Tiger!

Skill RAM Stage Treasure
Size
Treasure Rate (per Trove)
Chapter 2 – 7 Chapter 8+
Specials Lv 4 Plus I Stage 4 Small --- 6.00%
Stage 5 Small --- 4.25%
Specials Lv 4 Plus III Stage 4 Small --- 3.67%
Stage 5 Small --- 2.50%
Stage 5 Large --- 2.13%
Specials Lv 4 Plus V Stage 5 Large --- 0.38%
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