She'd use the Soul Catcher to rip my soul from my body thus killing me.

Muse's mist will envelope me and suffocate me to death.

She would put me to sleep in sweet dreams then kill me with that spear thingy

He would trap me in his aura and slice me to pieces with his sword.

Fluttershy would use his mystical smoke to put me to sleep then slash me to death with his claws.

summon a demon peacock and it woul eat me

...bore me to death by reading The Prince.

Tickle me to death with a feather.

Toss me off of a cliff; killing me by hand would be too messy and she'd get blood all over her nice new boots. : <

Whip the scarf around my sword so that I wouldn't be able to use it, then drain all of my blood.

I'm thinking failed CPR maybe? Crack a few ribs, puncture some vital things....etc....

He'd knock me unconscious, then feed me to his dragon.

Blinfold me & set me loose on the freeway

Take off his blindfold and blast me with his heat vision

- choked by scarf -

Beaten to death with a bunny slipper

Choked to death with that scarf. >.<

She'd kill me by bopping me upside the head with her staff repeatedly. Owwies.

By knocking me out using her gourd then choking me with her scarf

One swift arrow through the head.

Through the use of her magical prowess, she'd trap me within the vaccum of space....enough said.

Take her silver halo and probably lop off my head with it's not very obvious extremely sharp edge

She would bite off my legs, make sure I didn't run, then slowly [and very painfully], ex-sanguinate me at her leisure.

He'd bury me alive in the sands he lurks.

Send me into a dizzy trance with that shawl...-y...thing, and kick me gently off a cliff.

Probably slowly, and painfully, skinning me to the very last layer until I'm just a pile of coats to be sold for profit.

Constrict me with the snake tail, until my bones all crushed.

Beat me to death with that giant spiky anchor @_@

Either crush me with that tail of her's or use that pointy staff to hit and stab me

Edit

kill me with her evil glare o.x

Impale my torso and leave me to bleed to death. Then dye her sash in my blood. >.<

Slice me up with card shaped throwing stars XD

Throw her poison-gas-filled pillow at me.

Make me go boom with a splodey card. Ow.

Deflect my splodey cards with her own cards >.> Gambit'd mistime and hurt himself >.>

After I deflected his cards, he'd just beat me over the head with his quarterstaff. Good old-fashioned beat-down.

Edit
shove the party nose maker down my throat

Stabbed me with that sword thing

We need a staff item here >.>

She'd stab me in the throat with the butt-end of her hammer...

beats me to death with is invisible staff :q