Bestow curse curses question

[JakobMunk]

Right. Im unsure as where to post this since its my first post, or third actiually, but i guess those 2 introductionary ones don't count.

Anyways, im playing in this game, and im thinking bestow curse is somewhat boring. So i thought up a few curses of my own, but i would like to know if they are reasonable, or broken. And if so, what they should be instread. Keeping on theme of course.

The curses are:

Enter Sandman
When cursed creature casts a spell, it must make a Will save DC 25+spell level or that spell transforms into "Create Sand" (as the spell create water).

Poor Twisted Me
Cursed creature grows 1 size category and loses all movement. It gains fly speed 20’ (clumsy). If it doesn’t take a move action during its turn, it automatically moves upward 5 feet.

Sad but True
When cursed creature attacks, rolls of 1 through 5 are automatic fumbles (no confirmation required).

Until it Sleeps
During combat cursed creature must make a fortitude save DC 10 at the start of it’s turn or fall asleep for 1 round. For each save it makes, increase the next DC by 2. When cursed creature falls asleep, save DC is reset.

[kitep]

I'm pretty liberal about what I allow Bestow Curse to do.  It requires a saving throw.  A different spell (blindness, hold person, etc) would pretty much doom the victim, so I don't mind Bestow Curse being able to have cool effects.  It's also easy enough to get removed.

There's also a bunch of curses in BOVD (book of vile darkness).  Some are rather neat.

Poor Twisted MeCursed creature grows 1 size category and loses all movement. It gains fly speed 20’ (clumsy). If it doesn’t take a move action during its turn, it automatically moves upward 5 feet.

This is the one I would not allow.  There's plenty of times it would be a blessing, not a curse.  Especially if you're a melee type in heavy armor that limits you to 20' move anyway.

[JakobMunk]

Yea, that had me worrying that it could be used in a good way too. Any sugegstions as how to make it a bit more "cursey"

[kitep]

how about your body twists, giving you a hunchback and making it hard to move.  Movement is limited to a max of 5'.

[JakobMunk]

Yea, that sounds good

[absolon]

OMG, I love Bestow Curse and the Greater version so much! One I've thought about (since the Greater version can deny the ability to cast spells or use SLAs) is to take away a creature's special abilities (like Regeneration, Breath Weapons, Auras, Energy Drain, Blood Suck, Pounce, etc). Basically, anything that you'd find under the stat block that is Ex or Su is shut down.