Marceline's Links
Ice-horns over here is always talking like he's some mystical old creature. She's seen him fall face-first into a snowdrift. There's really no mysticism left, to be honest.
She's not a threat, she's just... kind of rude.
She's been around for ages and ages. She's gotta be someone's great-great-great, fifty times great grandma. What's she still doing guarding the stupid mountaintop?
She's lived on the mountain for quite some time, but has no interest in climbing to its peak. For that, she is allowed to remain where she is... even if she is a bit of an annoyance.