Challenging NPC's

murlocs in vanilla wow were pretty tough

Ribcages don't work like that
Is the original art like that too?

Challenging NPCs you say?
I've got over 500 hours in MH3U, and although now regular jho and regular brachydios are easy, Raging Jho and Raging Brachydios are still the hardest hunts in-game.
Besides Alatreon but that doesn't count since it's bullshit

Is taking not in the game?

uhn…

Rajang*

Nope, no Rajang in 3U.

The bosses in tales of xillia 2 come to mind

So the "raging trio" first appears in 4u

Actually I just checked and raging brachy isn't in 3U, only raging Jho.
I really don't know what the fuck was I thinking, I could've sworn that I fought raging brachy on 3u