The Tavern

Sacrifice religion: instant excommunication, can't worship any gods.

And +10% HP/+20% MP as for being a Dg? Otherwise I don't see how it can be useful.

it's a joke post

sacrifice religion: lose all your piety. gain an equal amount of piety.

sacrifice brain: always brainless

sac nut: if you pick up an acorn or a walnut or whatever in the dungeon, you can sac it for piety

sac nut sac: worth more piety than sac nut, and doesnt require having anything in your inventory, but cant be done more than twice

Sacrifice life: You die, get significant piety. Useless for everyone but a felid.

Sacrifice humour: +50% damage from killer klowns, MR--- for polymorph.

sacrifice death: you can no longer die and lose all piety, but it turns out living forever is a real bummer even if you have the orb of zot, and plus Ru just took away death and not aging so eventually you're just a shriveled up big naga wrinkle.

Sacrifice sanity: you cannot move except by blinking which costs 0 MP and has 50% failure rate.

This is one of the filthiest things I've ever read

sacrifice anus

you can't drop more than 1 stack on a single tile, and get Horror status when multiple items are on a single tile in LOS

You also cant # anymore.

Sacrifice jewelry: you cannot swap jewelry with monsters in LoS.
Sacrifice movement: you cannot move away from monsters in LoS.
Oh, wait, joke thread.
Sacrifice jewelry: next 20 jewelry items which you find (including ones in shops) cannot be picked up/purchased.
Sacrifice movement: you cannot move with monsters in LoS.

so you're saying that your first two suggestions weren't jokes?

man Sandman25Crawl would make IVAN look like an easy and fair game for babies

Well, we do have Ash and Obsidian Axe so I guess it does not make crawl unplayable.

you can still swap jewellery with ash and obsidian axe is mostly noted for being terrible if you can't uncurse it