Question: is tigrex an elder dragon?
Answer: The known Deviants that can be considered as Elder Dragon-Level Monster include Hellblade Glavenus, Dreadking Rathalos, Dreadqueen Rathian, Silverwind Nargacuga, Grimclaw Tigrex, Crystalbeard Uragaan, Thunderlord Zinogre, Deadeye Yian Garuga, Elderfrost Gammoth, Boltreaver Astalos, Soulseer Mizutsune, Rustrazor ...