Halo skull type challenges

Hypothetical for the helluvit-


Would you enjoy "challenges" like the Skull modifiers in the Halo games in DKS II? Instead of a calamity ring, you can turn a challenge modifier on for a playthrough at a time. Everyone is doing challenge runs anyways these days, why not have some developer made challenges, but once you start it there is no way to back out, so you are more compelled to stick with it.

Things like double damage taken, any enemy hit is instant death, double aggression, max encumbrance reduced significantly, double enemies, invasions only and no summons, etc etc. I'm sure this community could think of some brutal ones. Players on computer could maybe make their own difficulty mods and challenge other players to complete them.

Anything that promotes user generated content (UGC) I really like. I think consoles should learn from Infamous 2 in this regard as it just keeps you into the game. I like the idea of a developer challenge as well. You might not be a trophy/achievement person but…I think they should incorporate those challenges into the trophies that way it actually feels like you deserved it, and with this make true badass un-lockables (screw DLC) so you can show off what you did instead of just brag you have a trophy.

Oh yeah, an awesome achievement for completing the challenges is a must, but I think it should be something practically useless but awesome looking, or the ability to modify some existing gear you have already in a small way. Or maybe you could get an ability to reset stat points or something? Endless possibilities, but you would really need to earn it!

Yes, I mean that the DKS base is the same, but if you want to try an extra challenge you can turn on one of the "skulls".

I wouldn't want an adjustable slider for enemy health, player health, etc. Just something like during the character creation process you have an option to select a starting curse so to speak. Things like double enemy health, permanent halved player health, two of every enemy is now spawned, max encumbrance stunted 50%, weapons and armor degrade at 3x rate, enemies get big boost to aggressiveness, aggro range, dodging abilities, etc etc.
The game wouldn't tell you the benefit of finishing the playthrough with each specific curse, but there will be a good reward for each. Obviously the community would figure them out and it would become wiki material, but to those going through blind on a piss-hard challenge, not knowing whether or not they even get anything for it, now that would be a great Souls experience.

To further add to the mystery, maybe the starting curses only have a cryptic name and don't explain what they even do. Gives players a bigger mystery to solve.

It should be made clear that they are indeed curses, and something bad will happen to those who choose one, but smart players know that everything in the game has a reason (except, well, you know).