Amatsuアマツマガツチ

Elder Dragon ・嵐龍

Amatsu in the page header of the guidebook — Amatsu. 公式ガイドブック (Enterbrain, 2011), p. 324

A legendary Elder Dragon that came down to the Sacred Pinnacle deep in the Misty Peaks. It appears with great storms, and Yukumo Village's legends tell of it as a storm made flesh. Feared as a dragon of disaster that commands gales and tornadoes, it is also called the "storm dragon" for power equal to a natural disaster.

An Elder Dragon of the Yukumo region that rules the weather and wears the wind. Sometimes called the Storm Dragon, it is fearsome and mysterious as it commands wind and water.
公式ガイドブック (Enterbrain, 2011), p. 324

Monster data

Carves	Body x4Tail x2

More stars means more danger and more health. Red stars mean health past the top of the five-star scale, or very high stamina. Under When enraged, △ is a rise (more △ for a bigger one), ▼ a drop, and - no change. Ailments and items run from ◎ (works well) through ○ and △ to × (works poorly), and - means no effect.

Breakable parts

Head Bringing the head's durability to zero twice breaks the horn, and twice more breaks the fins around it. The reward needs both breaks
Back Bring the back's durability to zero once
Right foreleg Bring the right foreleg's durability to zero once
Left foreleg Bring the left foreleg's durability to zero once
Tail Deal enough cutting damage to the tail

Attacks

Attack	Damage	Guard break	Stun	Element	Guard	Notes
Roar	-	Mid	-	-	Facing	Roar stagger (small)
Charge	High	High	High	-	Facing	Knockback (medium)
Wind from the charge	-	-	-	-	Facing	Wind stagger (medium)
Great charge	High	Very high	High	-	Facing	Knockback (medium)
Charged rush (whirlwind)	High	Fairly high	Mid	-	Facing	Knockback (medium)
Charged rush (end)	Low	Very low	-	-	Facing	Trip
Spin attack	Mid	Mid	High	-	Facing	Knockback (medium)
Torrent breath	Very high	Very high	Mid	Water	No	Knockback (medium), Major Waterblight
Water shot	High	Mid	High	Water	Facing	Knockback (medium), Major Waterblight
Water jet	High	Very high	Mid	Water	No	Knockback (medium), Major Waterblight
Left foreleg attack	Mid	Mid	-	-	Facing	Knockback (small)
Right foreleg attack (foreleg)	High	Mid	-	-	Facing	Knockback (medium)
Right foreleg attack (whirlwind)	High	Fairly high	Mid	-	Facing	Knockback (medium)
Small tornado	Mid	Fairly high	Mid	-	Any side	Knockback (medium)
Great tornado (forming)	Very high	Very high	Mid	-	No	Knockback (medium)
Great tornado (lasting)	Very high	Very high	Mid	-	No	Knockback (medium)
Great charge (whirlwind)	High	Fairly high	Mid	-	Facing	Knockback (medium)
Tornado (body)	Low	Low	Mid	-	Facing	Knockback (small)
Somersault tail attack	High	Mid	High	-	Facing	Knockback (medium)
Somersault tail attack (whirlwind)	Very high	Fairly high	Mid	-	Facing	Knockback (medium)
Tail attack	High	Mid	High	-	Facing	Knockback (medium)
Tail attack (whirlwind)	Mid	Fairly high	Mid	-	Facing	Knockback (medium)

Guard: Any side can be blocked whichever way the hunter faces, Facing only when the hunter faces the attack, and No cannot be blocked.

Materials

Gathering Hall, high rank
How	Part	Material	Chance
Carve	Body	Sky Dragongem	E
Break reward	Head	Sky Dragongem	D
Break reward	Back	Sky Dragongem	E
Carve	Body	Storm Vesicle	C
Break reward	Head	Storm Vesicle	C
Break reward	Back	Storm Vesicle	C
Carve	Body	Amatsu Claw+	D
Break reward	Left foreleg	Amatsu Claw+	S
Break reward	Right foreleg	Amatsu Claw+	S
Carve	Body	Amatsu Chest Shell	B
	Body	Amatsu Cortex	B
	Tail	Amatsu Cortex	C
Break reward	Left foreleg	Amatsu Cortex	D
Break reward	Right foreleg	Amatsu Cortex	D
Carve	Tail	Amatsu Tail	S
Break reward	Head	Amatsu Horn	S
Carve	Body	Amatsu Membrane	C
Carve	Tail	Amatsu Membrane	C
Break reward	Back	Amatsu Membrane	S
	Left foreleg	Amatsu Membrane	B
	Right foreleg	Amatsu Membrane	B
	Back	Amatsu Membrane x2	D

Chance is the S to E grade the official guidebook gives.

Quests

Gathering Hall, high rank

Hall 8-40 Dancing Storm, a Song of Calamity

Hunting grounds

Sacred Pinnacle