What sort of'God' is he, does he have any special traits that may play a part in his death. Maybe a weakness of his could play in his downfall.

What is important though is that you don't tell the reader about his death, you show the reader, you make them feel for this god, who he was. This can help make the scene special.  If he is stabbed by a god killing dagger, who held it, how did it come to have such power over the gods, does it kill him instantly or does his death drag out, to be slow allowing his mind to bring back his memories, and thoughts of things he will never see.

emotion, emotion, emotion, and maybe a bit of detail ;)

Hope it goes well for you!