THE FIELD DATABASE
Rathian — MHO Monster Research
Read available Rathian research in Monster Hunter Outlanders (MHO), including sourced ecology notes and separately labelled material candidates.
Ecology & hunting notes
Ecology
Wyverns known as the "Queen of the Land." Terrestrial predators, they overpower prey with their venomous tails and powerful legs
Hunting notes
Guard against their poison tail and fire breath attacks—watch for an opening to sever the tail or boost your fire resistance to gain the upper hand in the hunt.
Related materials
Possible matches, not confirmed drops. Check the in-game rewards for your hunt.
Browse all 60 related materials →Combat & equipment references
Battle note
Rathians' tail spikes are venomous, so prioritize breaking them first!
Rathians' tail spikes are venomous, so prioritize breaking them first!
Area mention
Golden Expanse
The Lapua and the Rathian are headed toward the Golden Expanse.
Giantwood Locale
Hunt all special-sized Rathian in the Giantwood Locale
Desert Oasis
This Rathian's lair is reported to be located at the edge of the Desert Oasis.
Muddy Swamp
We found no trace of the Rathian during our last attempt, but further investigation near the Muddy Swamp discovered a suspicious spot. That Rathian's abnormal behavior might be connected to the island's unique Radiantite. If so, there might still be traces of its activity there. Let's go take a look.
Searing Plains
The shadow of the previous Rathian attack still looms large, and now other monsters in the Searing Plains show unusual activity. Rangers brought back reports of an abnormal Rathian sighting there, beyond her usual range. They need your help to investigate and hunt it!
Grand Archipelago
The scale you carved from the Rathian's body starts to emit the subtle glow of Radiantite. Could the emergence of radiant monsters somehow be linked to Radiantite? While discussing this, Holly thinks that higher quality Radiantite ore is needed to confirm. So, you determine your next destination will be—the Grand Archipelago!
Shrouded Swamp
The cave thick with Radiantite might hold traces of the Rathian. You venture back into the Shrouded Swamp, searching for new answers...
Part appearance
Body
Body: client artwork records intact and broken appearances. This does not establish break conditions or rewards.
Tail
Tail: client artwork records intact and broken appearances. This does not establish break conditions or rewards.
Wings
Wings: client artwork records intact and broken appearances. This does not establish break conditions or rewards.
Equipment series
Rathian Series
Rathian Series is a candidate series associated by the export. This is not a confirmed material recipe.
Sources & data limits
Names and research text come from client English localization; catalogue associations can be inferred. This snapshot does not establish current availability, drop rates, hitzone values or a weakness chart. Website descriptions are editorial summaries of the official Monster Hunter Outlanders website, reviewed 2026-11-04. Client text is labelled separately from those summaries.