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For other uses, see Fusion Combos.

Fusion Combo Up is an Aux Core or a Skill RAM/Upgrade in Xenoblade Chronicles 2 and Torna ~ The Golden Country. It increases the damage bonus effect of Fusion Combos by up to 36%. This effect is additive, and stacks with Fusion Combo boosting Blade Skills.

The Skill RAM/Upgrade variants can be used to customize Poppi QT and Poppi QTπ as an Aux Core equivalent. Poppi α is not compatible with this part.

The Disguised Pyra and Loyal Bellflower Nia DLC Aux Cores have equivalent effects to this Aux Core's Rank V and VI variants, respectively.


Stats

Aux Core
Aux Core Rarity Effect Sell Price
Unrefined Refined
Fusion Combo Up I Rarity1.png Boosts Fusion Combo effect by 10% 200 G 250 G
Fusion Combo Up II Rarity1.png Boosts Fusion Combo effect by 15% 650 G 850 G
Fusion Combo Up III Rarity2.png Boosts Fusion Combo effect by 20% 1,050 G 1,350 G
Fusion Combo Up IV Rarity2.png Boosts Fusion Combo effect by 25% 1,750 G 2,300 G
Fusion Combo Up V Rarity3.png Boosts Fusion Combo effect by 30% 1,900 G 2,450 G
Fusion Combo Up VI Rarity3.png Boosts Fusion Combo effect by 36% 2,400 G 3,100 G

Skill RAM
Skill RAM Effect Energy
Required
Ether Crystals Technical Manual
Create Crystallize
Fusion Combo Up I Boosts Fusion Combo effect by 10% 25 150 90 Ether R&D Revolution
Fusion Combo Up II Boosts Fusion Combo effect by 15% 50 500 200 Ether R&D Revolution
Fusion Combo Up III Boosts Fusion Combo effect by 20% 75 900 330 Robolab Club Quarterly
Fusion Combo Up IV Boosts Fusion Combo effect by 25% 100 1,400 490 Robolab Club Quarterly
Fusion Combo Up V Boosts Fusion Combo effect by 30% 125 3,600 900 Hypertech Made Easy

Refinement Recipes

Aux Core Requirement Materials Amount
Fusion Combo Up I Rarity Any Common Collectibles x4
Fusion Combo Up II Rarity Any Common Collectibles x8
Fusion Combo Up III Rarity Any Rare Collectibles x3
Fusion Combo Up IV Rarity Any Rare Collectibles x6
Fusion Combo Up V Rarity Any Legendary Collectibles x2
Fusion Combo Up VI Rarity Any Legendary Collectibles x3

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.

Fusion Combo Up I

Dropped by

Name Spawn Area Level Rate
Ardainian Soldier Story Gormott Province 6 - 10 12.0%
Lance Tirkin Normal Gormott Province 10 - 15 12.0%

Fusion Combo Up II

Treasure Troves

Quest Rewards

Merc Mission Rewards

Dropped by

Name Spawn Area Level Rate
Ardainian Rider Story Empire of Mor Ardain 23 - 28 10.8%
Brionac Lyman Quest Empire of Mor Ardain 27 10.8%
Tattooed Hugo Unique Empire of Mor Ardain 31 10.8%
Zeld Rodonya Normal Empire of Mor Ardain 27 - 29 10.8%

Challenge Battle Mode (DLC)

Challenge Name Difficulty Chest 1 Chest 2 Chest 3
Bewitching Dance CR2.png 1.35% 0.41% ---
Grazing Flock CR1.png 1.79% 0.55% ---
Pest Control CR1.5.png 0.88% 0.25% ---
Think of the Soldiers CR2.5.png 2.48% 0.84% ---
Titan Battleship Assault Special Battle 2.22% 0.73% ---

Fusion Combo Up III

Treasure Troves

Merc Mission Rewards

Dropped by

Name Spawn Area Level Rate
Arno Kapiba Normal Kingdom of Tantal 35 - 40 9.6%
Deep-Green Oscar Unique Kingdom of Tantal 41 9.6%
Hired Driver Quest Indoline Praetorium 40 9.6%
Ledro Urchon Salvaging Gormott Province 36 - 40 9.6%
Nongl Tirkin Quest Gormott Province 40 9.6%
Rivarl Lexos Normal Kingdom of Uraya 39 - 41 9.6%
Segel Ansel Normal Leftherian Archipelago 34 - 45 9.6%

Challenge Battle Mode (DLC)

Challenge Name Difficulty Chest 1 Chest 2 Chest 3
Bewitching Dance CR2.png --- --- 0.37%
Grazing Flock CR1.png --- --- 0.52%
Pest Control CR1.5.png --- --- 0.23%
Think of the Soldiers CR2.5.png --- --- 0.82%
Titan Battleship Assault Special Battle --- --- 0.70%

Fusion Combo Up IV

Merc Mission Rewards

Dropped by

Name Spawn Area Level Rate
Leran Parisax Normal Land of Morytha 54 - 56 8.4%
Malicious Dimitri Unique Land of Morytha 57 8.4%

Fusion Combo Up V

Quest Rewards

Dropped by

Name Spawn Area Level Rate
Gladiator Orion Unique Cliffs of Morytha 100 7.2%
Neleid Jagron Normal Temperantia 86 - 90 7.2%
Sammel Squood Normal Kingdom of Tantal 88 - 90 7.2%
Vagrant Baldr Unique Empire of Mor Ardain 62 7.2%

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%

Fusion Combo Up VI

Challenge Battle Mode (DLC)

Challenge Name Difficulty Chest 1 Chest 2 Chest 3
9th Imp. Armored Div. CR5.png 0.83% 0.33% ---
Chickenheart Challenge CR3.png 2.35% 1.08% ---
Cloud King's Revenge CR4.png 0.95% 0.18% ---
Dino Drama CR3.5.png 1.20% 0.48% ---
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% ---
Reinventing the Gogol CR4.png 0.84% 0.33% ---

Torna ~ The Golden Country

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

Fusion Combo Up I

Treasure Troves

Dropped by

Name Spawn Area Level Rate
Dominal Flamii Normal Gormott 15 - 16 12.0%
Ers Skeeter Normal Gormott 12 - 16 12.0%
Noble Aspar Normal Gormott 13 - 17 12.0%
Noggle Bunnit Normal Gormott 10 - 13 12.0%

Fusion Combo Up II

Treasure Troves

Quest Rewards

Dropped by

Name Spawn Area Level Rate
Sable Volff Normal Kingdom of Torna 25 - 31 10.8%

Fusion Combo Up III

Treasure Troves

Quest Rewards

Dropped by

Name Spawn Area Level Rate
Trets Aspar Normal Kingdom of Torna 33 - 44 9.6%
Vabra Tirkin Normal Gormott 38 - 42 9.6%
Ventts Ropl Normal Kingdom of Torna 36 - 40 9.6%

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+
Fusion Combo Up I Stage 4 Large 4.67% ---
Fusion Combo Up III Stage 4 Large 2.67% 3.80%
Fusion Combo Up V Stage 4 Large --- 0.80%
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