User blog comment:Lord Loss/Monster Hunter Theory... Blog/@comment-6040659-20131209012335/@comment-1011548-20131209162417

I'm really not sure Devlijho's hide is that tough - it doesn't have any obvious thick scales or other defenses like you see on Gravios, Uragaan, or heck, even on Rathalos. And maybe I'm remembering the sizes wrong, but it seems like Tigrex could bite off most Deviljho's belly in one bite, whereas Deviljho's jaws are smaller by comparison.

Deviljho's lack of armour is its single biggest weakness, and probably means a lot of creatures could drive one off, as long as they either attack first or are capable of surviving a dragonbreath.