LogFAQs > #896405269

Anjanath is probably the hardest hitting monster at that point in the game, if you're not acquainted with his moveset you should avoid being by his head, as the hitboxes for his rush attacks are huge. Best bet is right behind his legs so you can take advantage of his belly and tail being within reach, and if you're in front of him when he does the triple rush then run away and dodge so you do the long animation dive with superarmor.

That said in terms of difficulty he's more representative of the later monsters as opposed to the early pushovers like Great Jagras and Barroth.