Leviathan mice wait just below the surface of the water for passing ships. Using their size and power, these feared monsters crush ships and drag their cheesy cargo to the bottom of the ocean.
Power types
Effectiveness and the minimum luck needed to guarantee a catch with each type.
| Power type | Effectiveness | Minluck |
|---|---|---|
| Hydro | 175% | 60 |
| Physical | 100% | 83 |
| Tactical | 100% | 83 |
No effect: Arcane, Draconic, Forgotten, Law, Rift, Shadow traps can’t catch this mouse.
See the full minluck table for every mouse.
Where to find it
Best attraction rates by location and cheese, from MHCT and MH-Tools.
Found on maps
Hard Chrome Slayer Map71.43%Elaborate Chrome Slayer Map71.15%Hard Slayer Map65.30%Medium Chrome Slayer Map64.00%Medium Slayer Map58.47%Elaborate Slayer Map54.78%Easy Chrome Slayer Map51.85%Easy Slayer Map48.02%Long Rainbow Map44.93%Party Size Rainbow Map34.88%Party Size Long Rainbow Map33.75%Golden Jade Map30.10%Colossal Rainbow Map27.78%Giant Rainbow Map27.55%Party Size Giant Rainbow Map26.57%Party Size Colossal Rainbow Map24.27%Elaborate Map13.52%Arduous Map10.37%Hard Map7.42%
Swabbie Mouse
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Shipwrecked Mouse
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Mermouse