Yian Garuga is a 4★ Bird Wyvern monstie in Monster Hunter Stories 3: Twisted Reflection, described in-game as quick to anger and extremely aggressive, attacking with its crushing beak and poison-filled tail. It also appears as the very first Invasive Monster you'll face during the main story — and that version is a completely different beast. Here's how to get a regular Yian Garuga egg, what its strengths and weaknesses look like as a monstie, and how to make the Invasive Yian Garuga retreat.
Quick answer: You can find Yian Garuga eggs in monster dens at Mt. Canalta and Howlinyowl Forest in the Canalta Timberland region. To repel the Invasive Yian Garuga during the story, bring a Great Sword or Long Sword and focus all attacks on its legs until they break, causing it to flee.

Where to Find Yian Garuga Eggs
Yian Garuga eggs spawn inside monster dens in two habitats within Canalta Timberland:
| Habitat | Region |
|---|---|
| Mt. Canalta | Canalta Timberland |
| Howlinyowl Forest | Canalta Timberland |
Eggs inside random dens are not guaranteed to be Yian Garuga, so you may need to check multiple dens before one turns up. Once you find an egg, bring it back to the stable and hatch it to add Yian Garuga to your roster.
Forcing a Yian Garuga to Retreat for a Guaranteed Egg
If you want to skip the RNG, fight a wild Yian Garuga in either of the habitats listed above. You can force it to retreat to its den in two ways: earn a high battle score, or use a Paintball on it during the fight. When the monster retreats, every egg inside its den will be a Yian Garuga egg, removing the randomness entirely.

Yian Garuga Monstie Overview and Stats
As a monstie, Yian Garuga is a speed- and defense-oriented Bird Wyvern with solid offensive capability. Its stat spread favors Speed and Defense equally, making it a reliable pick for riders who want a fast, durable companion that can also fly.
| Stat | Rating (out of 10) |
|---|---|
| HP | 4 |
| Attack | 6 |
| Speed | 7 |
| Defense | 7 |
| Detail | Value |
|---|---|
| Monstie Rank | 4★ |
| Genus | Bird Wyvern |
| Riding Actions | Fly, Jump, Melee Attack, Roar, Breath |
Yian Garuga has two combat states — Normal and Enraged — each with its own attack type and element profile. The Fly and Breath riding actions make it useful for exploration, while Roar can interact with environmental puzzles and overworld encounters.

Yian Garuga Breakable Parts
Yian Garuga has four targetable body parts in both its Normal and Enraged states. The weapon type most effective against each part determines how quickly you can break it for extra rewards and topple opportunities.
| Part |
|---|
| Main Body |
| Head |
| Wings |
| Tail |
Specific weapon-type effectiveness values for each part are still being confirmed by the community. In general, slashing weapons like the Great Sword and Long Sword perform well against Yian Garuga's legs and tail, which is directly relevant to the Invasive encounter discussed below.
Yian Garuga Weaknesses and Ailment Resistances
Yian Garuga is notably immune to Poison — a significant detail because many late-game damage strategies rely on poison procs. It can, however, be afflicted by Burn and Paralysis, both of which are useful for controlling its aggressive attack patterns.
Full elemental and ailment resistance values are still being catalogued, but player testing confirms that fire-based damage and thunder-based stagger are both viable approaches. Pairing a fire-element monstie with a thunder-element partner like Tobi-Kadachi can cover both damage and stagger effectively.

How to Repel the Invasive Yian Garuga (Story Encounter)
The Invasive Yian Garuga is the first Invasive Monster you encounter in Monster Hunter Stories 3. You'll face it during Act 1, Chapter 6 — "Endangered Species" — as part of the main quest "The Princess of Vermeil," shortly after Eleanor joins your ranger party. The fight takes place in the eastern area of Sunpetal Plains in Azuria, inside a rocky clearing.
Location
Head to the far east of the Azuria map, northeast of the Sunpetal Plains lookout point and the Catavan Stand for "Sunpetal Plains Path." The game's quest marker will guide you there as part of the story progression.
How to Make It Retreat
Step 1: Equip a Great Sword or Long Sword before engaging. These slashing weapons are the most effective at breaking the Invasive Yian Garuga's legs, which is the specific condition required to trigger its retreat.
Step 2: Once the battle begins, focus all of your attacks — and direct your monstie's attacks — exclusively on the Invasive Yian Garuga's legs. Ignore other body parts.
Step 3: Keep hitting the legs until they break. When the leg break triggers, the Invasive Yian Garuga will stagger, topple, and then flee to its den.

Can You Actually Kill the Invasive Yian Garuga?
The Invasive Yian Garuga remains in its cave even after you complete the story quest, and some players have attempted to defeat it outright rather than simply repelling it. In practice, this is extraordinarily difficult at current progression levels. The monster takes only single-digit damage from most attacks — around 4 to 6 damage per hit with a hammer, for example — and its health bar barely moves.
Key obstacles to a full kill include:
- Poison immunity eliminates one of the strongest sustained-damage strategies in the game.
- A Lock-on buff after its charged AOE phase makes subsequent attacks nearly impossible to dodge.
- There are no Head-to-Head opportunities after the initial phase, cutting off Kinship gauge generation.
- Its Toxic Invasion charged AOE is essentially unavoidable and applies persistent buffs that prevent misses on follow-up attacks.
Players have found that Blast damage (roughly 2,450 per proc with Brachydios armor) and Paralysis are the most promising avenues, with some managing to reduce the Invasive Yian Garuga to about half health. Burn also works as a status effect, unlike Poison. However, no confirmed full kill has been widely reported yet, and the fight may be intentionally designed to be unwinnable at this stage — similar to the Elder Dragon Namielle, which takes only 1 to 3 damage per hit.

Invasive Yian Garuga Attack Pattern Reference
For players attempting to push the Invasive fight further, community testing has mapped out the general attack rotation:
| Turn | Action | Notes |
|---|---|---|
| 1 | Direct Attack | Can be dodged normally |
| 2 | Direct Attack | Can be dodged normally |
| 3 | Territorial Invasion (charged AOE) | Has poor accuracy; Dodge (L) can avoid it |
| 4 | Enraged | Enters enraged state |
| 5–7 | Energize ×3 | Charges for three turns |
| 8 | Toxic Invasion (charged AOE) | Unavoidable; applies Lock-on buff |
| 9 | Direct Attack | Unavoidable due to Lock-on |
| 10 | Direct Attack | Can be dodged |
| 11 | Invasion Assault (AOE) | Can be dodged with accuracy debuffs |
| 12+ | Enraged (second cycle) | May use Energize or Direct Attack; pattern varies |
From the second enraged phase onward, the Invasive Yian Garuga can choose between Energize (leading to another unavoidable Toxic Invasion AOE) or Direct Attack (leading to a Fire Breath AOE that can be dodged with accuracy reduction). The Dreadqueen Rathian's debuff skills can strip its attack and accuracy buffs, but the Lock-on buff persists regardless.
Yian Garuga is a strong 4★ monstie that pulls double duty as a versatile exploration companion and a solid combat pick thanks to its high Speed and Defense. Getting its egg is straightforward once you reach Canalta Timberland, and the Invasive version — while intimidating — only requires you to break its legs with a slashing weapon to progress the story and claim your first endangered Rathian egg.