The scariest part about the deer is that the creators said he survived having his the bricks dropped on him. They said that in another episode magic man turns him into a telescope. But since magic man lost his powers that could mean he changed back and is still out there.

The scariest thing about the deer, for me, is that there is seemingly no reason for him to do what he did. He had nothing to gain from the fucked up shit he did, he just seemed to enjoy creating a miserable, disturbed and depraved reality for himself

"Here's some pictures I whipped up showing what Finn sees"

So basically they gave Jake human vision and Finn dog vision? That's cute as fuck

SCARLET IS A YELLOW SWORD YET ITS CALLED SCARLET, THEY PLANNED HIM TO BE COLORBLIND

Damn I always wondered why James Baxter’s animation was way smoother than the rest of the show

"Before there was nothing, there were monsters" is honestly such a chilling concept that to this day that line gives me shivers. I can't see anyone other than Ron Perlman as that horrifying thing known as the Lich.

I believe stopped watching Adventure Time somewhere around Finn losing his arm, but I'm glad to see that the deer remains as traumatic as it was when I first saw it.

something bizarre that sticks to me to this day is lemonhope’s episodes, idk why but they had such bad vibes, they were the only episodes i felt close to what i felt on the deer one

Frankly I can't stand "it was all a dream" theories. They're so devoid of imagination. You're basically saying "Hey, what if this work of fiction was fictional"

Are we gonna ignore that fact that the lich literally skinned Billy? And then even wore his skin?

I like how specific Finn got with the DMT facts. He was literally telling PB her subjects were having a near death experience.

“It’s all a dream” theories are honestly the biggest buzzkill for a series. These people need to have some fun for once in their lives.

with all these icebergs it’s crazy how there wasn’t a single adventure time one before this one

Speaking of tarot cards, the King refuses to fight Marceline because he sees it as "Subjecting himself to The Wheel Of Fortune", another tarot card reference, so given his force of will in trying to break the cycle, I'd say by the end of the episode he represents the Hanged Man, which stands for letting go of your position to find peace, learning from mistakes, and seeing life from a new perspective. He willingly goes through with the process of having his power removed at the end of the episode and effectively ends his previous life as the King of Vampires, so hey, the writers are incredibly good at what they do whether that was intentional or not.