Sacrifice a baby goat??
That's like the biggest satanist-cliche ever. And Slipknot thinks they are bad ass, huh?

Here are some lyrics from Cryptopsy:

Capricornus Rex in tenebris
I long to feel the dark caress
Of your cloven hooves;
I seek the loving warmth of your anus
As I place my worshipful
Lips about your teats.

We hate, and so we gather
By the light of the moon;
The art of veneficium...
This we learned from you...
To make them grieve in their lord,
Their redeemer in flames
Fanned by the scorn of the children
Who now curse his name.

Sire of sin,
You embody me
Undivine...
To you we congregate;
None so vile,
Your magnificent
Crown of horns
Inspires deeds maleficent.