Here's a theme I created for King Sombra.

Made with Finale 2012

Lyrics

(English, sung by Sopranos)

I hunger
For crystals
Fear my roar of rage
I hunger
For vengeance
The Crystals will be mine
Come my Crystal Slaves!
Come my Crystal Slaves!
Your king has returned!
Come my Crystal Slaves!
Come my Crystal Slaves!
Your king has returned!
Welcome to your Doom!

(Latin, sung by Altos)

Esurio
Nam crystallis
Timeo fremitu furorem
Esurio
Pro vindicta
Et erunt mihi, crystallis
Veni, mi crystallo seruorumi!
Veni, mi crystallo seruorum!
Rediit rex vester!
Veni, mi crystallo seruorum!
Veni, mi crystallo seruorum!
Rediit rex vester!
Grata tua fata!