Well... It's clear to Joker that out of all the supervisors, Mari is the least likely to talk about that whole disastrous event- maybe moreso than Sans or himself. That'd be fine, usually, because it's not in his nature to try and muscle in on how the others run their parts of the carnival... But this is important.

Especially considering.... recent event.

So, with a resigned sigh, he just full out splays himself across the coral, arm propped up by some particular branches. "Well, ya got the usual bits... Blood drinkin', y'know. Pretty strong, pretty fast, both more than a human... Just attackin' 'em doesn't do much good, I can, uh-" A wry grin flickers across his face. "I can tell ya that from personal experience. Take off the head, take out the heart.... or just set the whole bloody monster ablaze." His legs click against coral as he thinks. "And... Hypnosis. Mind control. That sorta thing." His expression contorts into a grimace. "Not pleasant. Anyway, I think that's all I remember of the blasted things."

A pause.

"Oh and they taste like pork." And he flashes a wide grin that makes it hard to tell if he's fucking around or not.