Because It's Christmas...

...I will be posting WAY MORE than usual, since I am in the Frozen North with the pornstar-in-laws.

But also because its Christmas, I figure we could all help each other figure out what game stuff we want.

SO:

Say below the single best roleplaying supplement you have ever seen and why--in enough detail to convince someone to try to hunt down a copy.

"Core" books (dm guides, player's guides, and monster books) are not allowed. Adventures, sourcebooks, setting books, and suchlike stuff are.

For me it'd be the original Games Workshop Realms of Chaos books. Why? The finest RPG art ever produced (particularly in the second one--Adrian Smith). d1000 random mutation table. And the last word in Metal villains. It was all chaotic and it totally worked. Demon with grenade launcher for a hand and it totally didn't break the mood. Breathtaking.