You kneel down squeezing Crosier of Angel and recite 'Sanctum circum' 
Surges of holy force coil around your Crosier of Angel forming a vibrating
bolt
of divine energy. You twist your wrist and bolt hurls through the air
detonating
on Baal-naygash.
A reddish fire lines the body of Baal-Naygash...In horror you watch as the
body rises and attacks again! Suddenly, a white light emanates from the wrists
of the demon lord.  A screaming howl is wrenched out of Baal-Naygash's throat
as it writhes in pain.  A web of feathery light soon encircles the howling
creature. 

A trumpet blast echoes in the air and a shining white figure flashes into
existence.  Raising his arms the robed figure swiftly incants and the raving
demon destructs.

Turning to your party, the figure thanks you and says 'You have done well in
defeating this evil, but more remains to be done.  A rift currently exists
between the dwarves and elves, which if healed, would be an even greater good
than that which you have just done.  I believe this could be done if the Seal
of Kutanakor were 'placed' in the right hands.'  The angelic figure then
places his hands over the armor that had fallen off of the demon's body and
calls for a blessing.  A white nimbus of light settles into each piece.

With that the shining figure vanishes into a brilliant white light.
Baal-naygash suddenly stops breathing and jerks a couple of times violently,
then falls to the ground, lifeless.
Baal-naygash is DEAD, R.I.P.