Large wyverns found in Oilwell Basin. They have a developed physique, powerful heat rays, and a host of gases they can emit from their body. Their bony carapaces are famously tough but expose a surprisingly brittle interior once destroyed.
It's no easy task breaking through that heavy armor covering a Gravios head to talon, but repeated attacks will eventually make a crack. That—and the weaknesses a Gravios exposes in its carapace during certain attacks—are your chances to deliver Focus Strikes, demolish it piece by piece, and create even more opportunities.
| Species | Flying Wyvern |
| BaseHealth | 5,500 |
| HunterRankPoint | 850 |
| Head | 20 | 28 | 20 | 0 | 15 | 5 | 5 | 25 | 100 | |
| Head | Breakable | 25 | 35 | 25 | 0 | 15 | 5 | 5 | 30 | 100 |
| Head | Wounds | 80 | 82 | 80 | 0 | 35 | 15 | 15 | 25 | 100 |
| Neck | 25 | 30 | 20 | 0 | 30 | 5 | 10 | 20 | 0 | |
| Neck | Wounds | 70 | 70 | 70 | 0 | 35 | 15 | 15 | 35 | 0 |
| Belly | 25 | 30 | 30 | 0 | 35 | 5 | 15 | 30 | 0 | |
| Belly | Breakable | 70 | 70 | 60 | 15 | 45 | 5 | 15 | 40 | 0 |
| Belly | Wounds | 70 | 70 | 70 | 0 | 35 | 15 | 15 | 35 | 0 |
| Back | 25 | 30 | 25 | 0 | 25 | 5 | 15 | 15 | 0 | |
| Back | Breakable | 45 | 45 | 40 | 5 | 35 | 5 | 10 | 15 | 0 |
| Back | Wounds | 70 | 70 | 70 | 0 | 35 | 15 | 15 | 35 | 0 |
| Tail | 25 | 30 | 20 | 0 | 30 | 5 | 10 | 20 | 0 | |
| Tail | Wounds | 70 | 70 | 70 | 0 | 35 | 15 | 15 | 35 | 0 |
| Left Leg | 20 | 20 | 20 | 0 | 30 | 5 | 5 | 10 | 0 | |
| Left Leg | Breakable | 30 | 30 | 25 | 0 | 30 | 5 | 5 | 10 | 0 |
| Left Leg | Wounds | 70 | 70 | 70 | 0 | 35 | 15 | 15 | 35 | 0 |
| Right Leg | 20 | 20 | 20 | 0 | 30 | 5 | 5 | 10 | 0 | |
| Right Leg | Breakable | 30 | 30 | 25 | 0 | 30 | 5 | 5 | 10 | 0 |
| Right Leg | Wounds | 70 | 70 | 70 | 0 | 35 | 15 | 15 | 35 | 0 |
| Left Wing | 20 | 20 | 20 | 0 | 20 | 5 | 5 | 15 | 0 | |
| Left Wing | Breakable | 35 | 35 | 26 | 0 | 20 | 5 | 5 | 15 | 0 |
| Left Wing | Wounds | 70 | 70 | 70 | 0 | 35 | 15 | 15 | 35 | 0 |
| Right Wing | 20 | 20 | 20 | 0 | 20 | 5 | 5 | 15 | 0 | |
| Right Wing | Breakable | 35 | 35 | 26 | 0 | 20 | 5 | 5 | 15 | 0 |
| Right Wing | Wounds | 70 | 70 | 70 | 0 | 35 | 15 | 15 | 35 | 0 |
| Head | 450 HP, 550 HP, 800 HP | x2 Wounds: 100HP→50HP→120HP | RED | |
| Neck | 450 HP, 550 HP, 800 HP | x1 Wounds: 100HP→50HP→120HP | ORANGE | |
| Belly | 450 HP, 450 HP, 450 HP, 550 HP, 800 HP, 9999 HP | x3 Wounds: 100HP→50HP→120HP | ORANGE | |
| Back | 450 HP, 550 HP, 800 HP | x2 Wounds: 100HP→50HP→120HP | ORANGE | |
| Tail | 400 HP | x2 Wounds: 100HP→50HP→120HP | GREEN | |
| Left Leg | 200 HP | x2 Wounds: 100HP→50HP→120HP | WHITE | |
| Right Leg | 200 HP | x2 Wounds: 100HP→50HP→120HP | WHITE | |
| Left Wing | 140 HP | x2 Wounds: 100HP→50HP→120HP | ORANGE | |
| Right Wing | 140 HP | x2 Wounds: 100HP→50HP→120HP | ORANGE |
| BuildUp | Damage | Decay | |
|---|---|---|---|
| Poison | 150 (+100) → 550 | 200 | -5/10sec |
| Sleep | 150 (+100) → 750 | 0 | -5/10sec |
| Paralysis | 180 (+130) → 960 | 0 | -5/10sec |
| Blastblight | 70 (+30) → 670 | 100 | -5/10sec |
| Stun | 120 (+100) → 720 | 0 | -5/10sec |
| Exhaust | 225 (+75) → 900 | 0 | -5/10sec |
| BuildUp | Damage | Decay | |
|---|---|---|---|
| Ride | 75 (+230) → 995 | 0 | -0/0sec |
| Parry | 1 (+150) → 601 | 0 | -0/0sec |
| Capture | 0 (+0) → 0 | 0 | -0/0sec |
| Scar | 125 (+0) → 0 | 0 | -0/0sec |
| SkillStabbing | 500 (+125) → 750 | 0 | -0/0sec |
| SkillRyuki | 500 (+250) → 1500 | 0 | -0/0sec |