Lermanicus

I have played around a bit with it. It is when the Cave Grub activates an ability. It is not the knockdown, I crash once it goes off so I can't get the name, but the I cut looks like a cut or a tent flap that is partly open at the bottom. It is tan with a dark red part that is the cut or flap opening.

I have crashed there twice. I entered from the West the first time and the North the second time. It seem like it crashes when a certain ability of the monster's is activated.