The Yian Tigrex is somewhat a cross between a Yian Kut-Ku and a Tigrex.
It lives in volcanoes and swamps only.
It has the pecking attack the Yian Kut-Ku has. It moves almost like a Tigrex, but a bit slower, probably because of being half Yian Kut Ku, half Tigrex. It can jump and strike like a Tigrex. It can also throw pieces of the ground at opponents, like the Tigrex does. Another of it's attack is fire-spitting, causing fireblight on hunters.
When it is ranged or angered, it's attacks will be 25% stronger and faster. It will have red eyes when angered.
It's health is 20% greater than a normal Kut-Ku or Tigrex
- This monster became a reality in Monster Hunter Online's 2016 April Fool's quest.