Check out this guide to find out how to get Rathian Cortex in Monster Hunter: Iceborne! Includes item info and how to acquire Rathian Cortex.All Material List
Rathian Cortex - Info & How To Get
Rathian Cortex- Description
Very rare Rathian material. Mostly obtained as a reward. Solid, used to craft gear.
Rathian Cortex - How To Get
You can obtained by defeating Rathian.