- Class
- Leviathan
- Habitat
- Scarlet Forest
- Weak to
- Fire
- Base HP
- 5,600
- Variants
- Tempered Lagiacrus
Leviathans that exist at the top of the aquatic food chain. They have appeared in the waters of the Scarlet Forest, drawn in by its fertile environment.In-game description
Lagiacrus, first seen in Monster Hunter 3, sits at the top of the ocean food chain, and in Wilds it has followed its prey inland into the Scarlet Forest.
Out in the wild
Its hide generates electricity, which it stores in the shockspikes along its back. It can discharge enough current to boil the water around it. The brighter the spikes glow, the bigger the coming discharge. Lagiacrus has been seen fighting other monsters in the Scarlet Forest, probably drawn in by prey and richer land. It competes with Rathalos for food, and you can use their turf war for some free damage.
Where you meet it
It arrived with free Title Update 2 on June 30, 2025. You need HR 31 or higher and the story mission “A World Turned Upside Down”. Its first assignment is a capture, so killing it fails the quest. A Tempered version also exists.
How the fight goes
Later in the fight it dives underwater, where it has a smaller set of moves. You can use the Hook Slinger there, latch on and use your knife to make wounds. Enough damage forces it back up. Watch the shockspikes: a bright glow while it’s submerged means a big shock is coming.
Hunter’s tips
- Break the shockspikes first. It weakens its ability to build charge.
- After a big discharge, its back is open for a Focus Strike.
- Head and forelegs can be broken, and the tail can be cut off.
Weaknesses
Elements
Status ailments
Items & effects
Elements: the game data marks the main elemental weakness; "best hitzone" is the highest value for that element on any body part. Status and item stars: 3 = most effective. A dash means no listed weakness.
Hitzones
| Part | Slash | Blunt | Pierce | Fire | Water | Thndr | Ice | Drgn | Stun | Extract |
|---|---|---|---|---|---|---|---|---|---|---|
| Neck | 24 | 38 | 15 | 10 | 0 | 0 | 5 | 5 | 0 | Orange |
| Chest | 55 | 45 | 35 | 10 | 0 | 0 | 10 | 10 | 0 | Orange |
| Head | 45 | 45 | 45 | 15 | 0 | 0 | 10 | 10 | 100 | Red |
| Hide 1 | 45 | 45 | 45 | 15 | 0 | 0 | 10 | 10 | 100 | |
| Hide 2 | 24 | 38 | 15 | 10 | 0 | 0 | 5 | 5 | 0 | |
| Hide 3 | 55 | 55 | 55 | 10 | 0 | 0 | 10 | 10 | 0 | |
| Hide 4 | 45 | 45 | 45 | 25 | 0 | 0 | 15 | 15 | 0 | |
| Hide 5 | 25 | 25 | 25 | 5 | 0 | 0 | 5 | 5 | 0 | |
| Hide 6 | 25 | 25 | 25 | 10 | 0 | 0 | 5 | 5 | 0 | |
| Hide 7 | 38 | 38 | 38 | 10 | 0 | 0 | 5 | 5 | 0 | |
| Hide 8 | 35 | 35 | 35 | 20 | 0 | 0 | 10 | 10 | 0 | |
| Back | 45 | 45 | 15 | 25 | 0 | 0 | 15 | 15 | 0 | Green |
| Torso | 25 | 25 | 20 | 5 | 0 | 0 | 5 | 5 | 0 | White |
| Hind Legs | 38 | 38 | 30 | 10 | 0 | 0 | 5 | 5 | 0 | White |
| Front Legs | 25 | 25 | 10 | 10 | 0 | 0 | 5 | 5 | 0 | White |
| Tail | 30 | 35 | 20 | 20 | 0 | 0 | 10 | 10 | 0 | Orange |
Higher numbers take more damage. Highlighted: 45+ for physical and 20+ for elemental damage, the usual weak-spot thresholds.
Drops & rewards
High Rank
| Item | Method | Qty | Chance |
|---|---|---|---|
| Lagiacrus Shockspike | Broken Part (Back) | 1 | 100% |
| Lagiacrus Horn+ | Broken Part (Head) | 1 | 100% |
| Lagiacrus Claw+ | Broken Part (Front Legs) | 1 | 100% |
| Lagiacrus Hide+ | Carve | 1 | 23% |
| Lagiacrus Scale+ | Carve | 1 | 22% |
| Lagiacrus Claw+ | Carve | 1 | 18% |
| Lagiacrus Shockspike | Carve | 1 | 13% |
| Lagiacrus Horn+ | Carve | 1 | 11% |
| Lagiacrus Tail | Carve | 1 | 11% |
| Lagiacrus Sapphire | Carve | 1 | 2% |
| Lagiacrus Hide+ | Carve Rotten | 1 | 40% |
| Monster Hardbone | Carve Rotten | 1 | 30% |
| Lagiacrus Scale+ | Carve Rotten | 1 | 30% |
| Lagiacrus Hide+ | Carve Rotten Severed | 1 | 60% |
| Lagiacrus Tail | Carve Rotten Severed | 1 | 40% |
| Lagiacrus Tail | Carve Severed | 1 | 100% |
| Lagiacrus Sapphire | Target Reward | 1 | 100% |
| Lagiacrus Shockspike | Target Reward | 1 | 27% |
| Lagiacrus Horn+ | Target Reward | 1 | 27% |
| Lagiacrus Claw+ | Target Reward | 1 | 27% |
| Lagiacrus Scale+ | Target Reward | 1 | 25% |
| Lagiacrus Hide+ | Target Reward | 1 | 25% |
| Lagiacrus Hide+ | Target Reward | 1 | 22% |
| Lagiacrus Scale+ | Target Reward | 1 | 20% |
| Lagiacrus Tail | Target Reward | 1 | 18% |
| Lagiacrus Claw+ | Target Reward | 1 | 18% ×2 |
| Lagiacrus Shockspike | Target Reward | 1 | 15% ×2 |
| Lagiacrus Certificate S | Target Reward | 1 | 8% |
| Lagiacrus Horn+ | Target Reward | 1 | 8% ×2 |
| Lagiacrus Tail | Target Reward | 1 | 8% ×2 |
| Lagiacrus Sapphire | Target Reward | 1 | 1% ×3 |
| Wyverian Bloodstone (L) | Tempered Wound Destroyed | 1 | 85% |
| Wyverian Bloodstone Chunk | Tempered Wound Destroyed | 1 | 15% |
| Lagiacrus Scale+ | Wound Destroyed | 1 | 50% |
| Lagiacrus Hide+ | Wound Destroyed | 1 | 50% |
Lagiacrus weapons & armor
Weapons
Armor sets
Strongest Fire weapons
Sorted by element value. Lagiacrus takes extra fire damage.