This is from the third track of the (far from finished) My Little Pony themed deathcore album I'm working on.

Fun for you, this one comes with a story!

Rarity decides that her generosity isn't to be taken advantage of; therefore, she resolves to kill Suri Polomar to right what was done to her.

Rarity ponynaps Suri, and then tortures her and disfigures her face with a pair of scissors and sewing needles. The part here is to convey that Rarity has a sudden tug of compassion infused with the triumph over Suri, but the anger which spurred the crime in the first place replaces her regret and she kills Suri.

So basically, Rarity has a moment of, "What have I done?" and then hacks wildly with the scissors until Suri dies as Rarity descends into madness.

I used a drum machine. I don't usually here lately, but it's cold here. Recording drums and the cold doesn't mix. I really should get more heaters for the studio.