Crazy things the books kinda gloss over

This time it would be cold that killed him.

His last death had been by fire. I burned. At first, in his confusion, he thought some archer on the Wall had pierced him with a flaming arrow … but the fire had been inside him, consuming him. And the pain …

Varamyr had died nine times before. He had died once from a spear thrust, once with a bear’s teeth in his throat, and once in a wash of blood as he brought forth a stillborn cub. He died his first death when he was only six, as his father’s axe crashed through his skull. Even that had not been so agonizing as the fire in his guts, crackling along his wings, devouring him. When he tried to fly from it, his terror fanned the flames and made them burn hotter. One moment he had been soaring above the Wall, his eagle’s eyes marking the movements of the men below. Then the flames had turned his heart into a blackened cinder and sent his spirit screaming back into his own skin, and for a little while he’d gone mad. Even the memory was enough to make him shudder.

Stuff like a man casually recalling the experience of having died in childbirth.

“It is a monstrous cruel thing to lose a child,” she whispered softly,

This is a dude who has experienced a mother's ultimate sacrifice firsthand and the first scene of Dance's prologue is him munching on a pregnant woman's belly he has just hunted down inside of his wolf pack. Imagine being able to literally walk in somebody else's shoes and all it does is making other people suffer even more enjoyable for you.

What is some other insane shit the books just casually throw in there that is easily glossed over?

There's also Varamyr taking backshots from One-Eye whenever the female wolf in his pack is in heat but I thought the first one still tops that, dude is literally Kenjaku from JJK lol