Gravios Flying Wyvern
Provides Inferno Sac
Seen in Oilwell Basin, Ruins of Wyveria
How to tackle Gravios › Great Sword Yian Kut-Ku Tree
Chicken Decapitator II
Rarity 7
A splendid great sword that looks like a Yian Kut-Ku's wing. Elaborate work went into the blade.
- Attack
- 210 RAW 1008 displayed
- Fire
- 55 element
- Decoration slots
- 12 Lv1 · Lv2
Sharpness
How to get it
Step 2 of 2Upgrade from Chicken Decapitator I at the Smithy.
- Step 1 · Forge Rarity 5Chicken Decapitator IKut-Ku Scale+ ×5, Kut-Ku Ear ×2, Kut-Ku Wing ×3, Yian Kut-Ku Certificate S ×1Also branches to Smiting Fulgur I
- Step 2 · Upgrade Rarity 7Chicken Decapitator IINu Udra Certificate S ×2, Giant Beak ×4, Bird Wyvern Gem ×1, Inferno Sac ×4Also branches to Rooster DecapitatorThis weapon
Materials
Chicken Decapitator I → Chicken Decapitator II
| Material | Qty | Comes from | Highest listed chance |
|---|---|---|---|
 Nu Udra Certificate S | ×2 | Nu Udra | 8% target reward · nu udra |
 Giant Beak | ×4 | Yian Kut-Ku | 21% target reward · yian kut-ku |
 Bird Wyvern Gem | ×1 | Gypceros, Yian Kut-Ku | 100% target reward · gypceros |
 Inferno Sac | ×4 | Rathian, Rathalos, Guardian Rathalos, Gravios, Yian Kut-Ku | 30% carve · rotten · rathian |
Chicken Decapitator I → Chicken Decapitator II
| Material | Qty | Comes from | Highest listed chance |
|---|---|---|---|
 Kut-Ku Scale+ | ×5 | Yian Kut-Ku | 50% wound destroyed · yian kut-ku |
 Kut-Ku Ear | ×2 | Yian Kut-Ku | 100% broken part · yian kut-ku |
 Kut-Ku Wing | ×3 | Yian Kut-Ku | 33% target reward · yian kut-ku |
 Yian Kut-Ku Certificate S | ×1 | Yian Kut-Ku | 8% target reward · yian kut-ku |
| Nu Udra Certificate S | ×2 | Nu Udra | 8% target reward · nu udra |
| Giant Beak | ×4 | Yian Kut-Ku | 21% target reward · yian kut-ku |
| Bird Wyvern Gem | ×1 | Gypceros, Yian Kut-Ku | 100% target reward · gypceros |
| Inferno Sac | ×4 | Rathian, Rathalos, Guardian Rathalos, Gravios, Yian Kut-Ku | 30% carve · rotten · rathian |
Sources
7 monsters 
Guardian Rathalos Construct
Provides Inferno Sac
Seen in Ruins of Wyveria
How to tackle Guardian Rathalos › 
Gypceros Bird Wyvern
Provides Bird Wyvern Gem
Seen in Iceshard Cliffs, Oilwell Basin, Ruins of Wyveria, Windward Plains
How to tackle Gypceros › 
Nu Udra Cephalopod
Provides Nu Udra Certificate S
Seen in Oilwell Basin
How to tackle Nu Udra › 
Rathalos Flying Wyvern
Provides Inferno Sac
Seen in Oilwell Basin, Ruins of Wyveria, Scarlet Forest
How to tackle Rathalos › 
Rathian Flying Wyvern
Provides Inferno Sac
Seen in Oilwell Basin, Scarlet Forest, Windward Plains
How to tackle Rathian › 
Yian Kut-Ku Bird Wyvern
Provides Kut-Ku Scale+, Kut-Ku Ear, Kut-Ku Wing, Yian Kut-Ku Certificate S, Giant Beak, Bird Wyvern Gem, Inferno Sac
Seen in Iceshard Cliffs, Scarlet Forest
How to tackle Yian Kut-Ku › Related
Armor from the same monster
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Artian α 5 PIECES · R6 
Gravios α 5 PIECES · R6 
Gravios β 5 PIECES · R6 Yian Kut-Ku Tree · 27 weapons
Beak Axe I Beak Axe II 
Chicken Decapitator I 
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Kut-Ku Anger I Kut-Ku Anger II 
Kut-Ku Cantabile 
Kut-Ku Counterattack Kut-Ku Pair I Kut-Ku Pair II 
Kut-Ku Pick I Kut-Ku Pick II 
Kut-Ku Pike I Kut-Ku Pike II 
Kut-Ku Stave I Kut-Ku Stave II Kut-Ku Thwap Kut-Ku's Song I Kut-Ku's Song II Rooster Decapitator Sawbill Axe Strange Kut-Ku Stave 
Super Kut-Ku Cannon Toucan Pike 
Yian Kut-Ku Cannon I Yian Kut-Ku Cannon II