Need an Incantation to summon Dagon

[Desdichado]

Incantations—from Unearthed Arcana and detailed right here for those of you who don't know, are great tools for giving PCs access to spells that they otherwise couldn't cast. And they have a cost associated with them and a lengthy ritual, and they otherwise feel much more like traditional fantasy magic than D&D magic usually does.

My players just got two incantations; one for unbinding a trapped soul (they also have the trapped soul in question) and one that I made up on the fly that summons Dagon (the CR 30 version from Dragon magazine. My PC's are 4th level.) Although I don't envision that they'll use it any time soon, the fact that they have it means they may yet keep it in mind as a desperate last gambit if things go poorly for them elsewhere. So I thought it prudent that I come up some actual mechanics behind that. Any ideas? I've been interested in the concept of incantations, but haven't actually made any. This would be the equivalent of an epic, evil summoning spell, so it should definately be something that the PC's don't do lightly. In fact, if it's so cost prohibitive that they don't do it unless they're looking to go out in a blaze of glory, then that's probably a good thing.

Help me, ENWorld, you're my only hope! Years ago you served my father...

Err... whoops. Got carried away there.

 

[phindar]

Here's some Incantations from a New Age site. Some are too lovey-dovey for your purposes, but they give you something to work with.

Also, remember to never summon anything bigger than your head.

 

[Tewligan]

"Hastur Hastur Hastur Hastur Hastur Hastur...oh, hi! Hey, have you seen Dagon around?"

 

[Wik]

Here's some Incantations from a New Age site. Some are too lovey-dovey for your purposes, but they give you something to work with.

Also, remember to never summon anything bigger than your head.

You're not funny.

 

[Aholibamah]

*a terrible old man sits next to you in a tavern, his eyes strange and unsettling, and hands you a bunch of rolled up parchments. He warns you not to let anyone know where you got them. His eyes bore into yours signficantly for a moment before he rises and is lost in the smoke and the crowd...*

http://www.cthulu.info/incant.html

 

[kenobi65]

"Dagon, Dagon, he's our man. If he can't do it, no one can!"

 

[heavensblade23]

*a terrible old man sits next to you in a tavern, his eyes strange and unsettling, and hands you a bunch of rolled up parchments. He warns you not to let anyone know where you got them. His eyes bore into yours signficantly for a moment before he rises and is lost in the smoke and the crowd...*

http://www.cthulu.info/incant.html

People should spell-check their graphics..."Neronomicon"?

 

[SSquirrel]

Roses are red
violets are blue
cthulhu ftaghn!
and I summon you

 

[Dioltach]

I thought the standard operating procedure was to take a goldmine and a wealthy clan of dwarves, and wait for the dragon to show up ...

 

[Aeolius]

D-A-G-O-N, D-A-G-O-N, D-A-G-O-N,
And Dagon was his name-o.