Heavy Bowgun Gravios Tree

Gravios Gigahowl

Rarity 8 Final upgrade

An upgraded Gravios Howl. Its raucous blasts thunder through the air, shattering the atmosphere.

How to get it

Step 3 of 3

Upgrade from Gravios Howl I at the Smithy.

Step 1 · Forge Rarity 5
Queen's Longfire I
Rathian Scale+ ×5, Rathian Webbing ×3, Rathian Spike+ ×2, Rathian Certificate S ×1

Also branches to Queen's Longfire II
Step 2 · Upgrade Rarity 6
Gravios Howl I
Gravios Skull ×3, Gravios Pleura+ ×4, Gravios Wing ×5, Gravios Certificate S ×2

Also branches to Tödlicher Abzug I
Step 3 · Upgrade Rarity 8
Gravios Gigahowl
Gravios Carapace ×6, Gravios Medulla ×1, Hunter Symbol II ×5, Wyvern Gem ×1
This weapon

Gravios Howl I → Gravios Gigahowl

Material	Qty	Comes from	Highest listed chance
Gravios Carapace	×6	Gravios	100% carve · severed, rotten · gravios
Gravios Medulla	×1	Gravios	22% carve · severed part · gravios
Hunter Symbol II	×5	Quest reward
Wyvern Gem	×1	Balahara, Quematrice, Rompopolo, Hirabami, Gravios	100% target reward · gravios

Queen's Longfire I → Gravios Howl I → Gravios Gigahowl

Material	Qty	Comes from	Highest listed chance
Rathian Scale+	×5	Rathian	60% carve · severed, rotten · rathian
Rathian Webbing	×3	Rathian	100% broken part · rathian
Rathian Spike+	×2	Rathian	80% carve · severed part · rathian
Rathian Certificate S	×1	Rathian	8% target reward · rathian
Gravios Skull	×3	Gravios	100% broken part · gravios
Gravios Pleura+	×4	Gravios	100% broken part · gravios
Gravios Wing	×5	Gravios	100% broken part · gravios
Gravios Certificate S	×2	Gravios	8% target reward · gravios
Gravios Carapace	×6	Gravios	100% carve · severed, rotten · gravios
Gravios Medulla	×1	Gravios	22% carve · severed part · gravios
Hunter Symbol II	×5	Quest reward
Wyvern Gem	×1	Balahara, Quematrice, Rompopolo, Hirabami, Gravios	100% target reward · gravios

6 monsters

Balahara Leviathan

Provides Wyvern Gem

Seen in Windward Plains

Gravios Flying Wyvern

Provides Gravios Skull, Gravios Pleura+, Gravios Wing, Gravios Certificate S, Gravios Carapace, Gravios Medulla, Wyvern Gem

Seen in Oilwell Basin, Ruins of Wyveria

Hirabami Leviathan

Provides Wyvern Gem

Seen in Iceshard Cliffs, Ruins of Wyveria

Quematrice Brute Wyvern

Provides Wyvern Gem

Seen in Ruins of Wyveria, Windward Plains

Rathian Flying Wyvern

Provides Rathian Scale+, Rathian Webbing, Rathian Spike+, Rathian Certificate S

Seen in Oilwell Basin, Scarlet Forest, Windward Plains

Rompopolo Brute Wyvern

Provides Wyvern Gem

Seen in Oilwell Basin